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/*!
  * Bootstrap v4.4.1 (https://getbootstrap.com/)
  * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery')) :
  typeof define === 'function' && define.amd ? define(['exports', 'jquery'], factory) :
  (global = global || self, factory(global.bootstrap = {}, global.jQuery));
}(this, function (exports, $) { 'use strict';

  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): util.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Private TransitionEnd Helpers
   * ------------------------------------------------------------------------
   */

  var TRANSITION_END = 'transitionend';
  var MAX_UID = 1000000;
  var MILLISECONDS_MULTIPLIER = 1000;

  // Shoutout AngusCroll (https://goo.gl/pxwQGp)
  function toType(obj) {
    return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase()
  }

  function getSpecialTransitionEndEvent() {
    return {
      bindType: TRANSITION_END,
      delegateType: TRANSITION_END,
      handle: function handle(event) {
        if ($(event.target).is(this)) {
          return event.handleObj.handler.apply(this, arguments) // eslint-disable-line prefer-rest-params
        }
        return undefined // eslint-disable-line no-undefined
      }
    }
  }

  function transitionEndEmulator(duration) {
    var this$1 = this;

    var called = false;

    $(this).one(Util.TRANSITION_END, function () {
      called = true;
    });

    setTimeout(function () {
      if (!called) {
        Util.triggerTransitionEnd(this$1);
      }
    }, duration);

    return this
  }

  function setTransitionEndSupport() {
    $.fn.emulateTransitionEnd = transitionEndEmulator;
    $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
  }

  /**
   * --------------------------------------------------------------------------
   * Public Util Api
   * --------------------------------------------------------------------------
   */

  var Util = {

    TRANSITION_END: 'bsTransitionEnd',

    getUID: function getUID(prefix) {
      do {
        // eslint-disable-next-line no-bitwise
        prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
      } while (document.getElementById(prefix))
      return prefix
    },

    getSelectorFromElement: function getSelectorFromElement(element) {
      var selector = element.getAttribute('data-target');

      if (!selector || selector === '#') {
        var hrefAttr = element.getAttribute('href');
        selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
      }

      try {
        return document.querySelector(selector) ? selector : null
      } catch (err) {
        return null
      }
    },

    getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
      if (!element) {
        return 0
      }

      // Get transition-duration of the element
      var transitionDuration = $(element).css('transition-duration');
      var transitionDelay = $(element).css('transition-delay');

      var floatTransitionDuration = parseFloat(transitionDuration);
      var floatTransitionDelay = parseFloat(transitionDelay);

      // Return 0 if element or transition duration is not found
      if (!floatTransitionDuration && !floatTransitionDelay) {
        return 0
      }

      // If multiple durations are defined, take the first
      transitionDuration = transitionDuration.split(',')[0];
      transitionDelay = transitionDelay.split(',')[0];

      return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER
    },

    reflow: function reflow(element) {
      return element.offsetHeight
    },

    triggerTransitionEnd: function triggerTransitionEnd(element) {
      $(element).trigger(TRANSITION_END);
    },

    // TODO: Remove in v5
    supportsTransitionEnd: function supportsTransitionEnd() {
      return Boolean(TRANSITION_END)
    },

    isElement: function isElement(obj) {
      return (obj[0] || obj).nodeType
    },

    typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
      for (var property in configTypes) {
        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
          var expectedTypes = configTypes[property];
          var value         = config[property];
          var valueType     = value && Util.isElement(value)
            ? 'element' : toType(value);

          if (!new RegExp(expectedTypes).test(valueType)) {
            throw new Error(
              (componentName.toUpperCase()) + ": " +
              "Option \"" + property + "\" provided type \"" + valueType + "\" " +
              "but expected type \"" + expectedTypes + "\".")
          }
        }
      }
    },

    findShadowRoot: function findShadowRoot(element) {
      if (!document.documentElement.attachShadow) {
        return null
      }

      // Can find the shadow root otherwise it'll return the document
      if (typeof element.getRootNode === 'function') {
        var root = element.getRootNode();
        return root instanceof ShadowRoot ? root : null
      }

      if (element instanceof ShadowRoot) {
        return element
      }

      // when we don't find a shadow root
      if (!element.parentNode) {
        return null
      }

      return Util.findShadowRoot(element.parentNode)
    },

    jQueryDetection: function jQueryDetection() {
      if (typeof $ === 'undefined') {
        throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.')
      }

      var version = $.fn.jquery.split(' ')[0].split('.');
      var minMajor = 1;
      var ltMajor = 2;
      var minMinor = 9;
      var minPatch = 1;
      var maxMajor = 4;

      if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
        throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0')
      }
    }
  };

  Util.jQueryDetection();
  setTransitionEndSupport();

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): alert.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME                = 'alert';
  var VERSION             = '4.4.1';
  var DATA_KEY            = 'bs.alert';
  var EVENT_KEY           = "." + DATA_KEY;
  var DATA_API_KEY        = '.data-api';
  var JQUERY_NO_CONFLICT  = $.fn[NAME];

  var Selector = {
    DISMISS : '[data-dismiss="alert"]'
  };

  var Event = {
    CLOSE          : ("close" + EVENT_KEY),
    CLOSED         : ("closed" + EVENT_KEY),
    CLICK_DATA_API : ("click" + EVENT_KEY + DATA_API_KEY)
  };

  var ClassName = {
    ALERT : 'alert',
    FADE  : 'fade',
    SHOW  : 'show'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Alert = function Alert(element) {
    this._element = element;
  };

  var staticAccessors = { VERSION: { configurable: true } };

  // Getters

  staticAccessors.VERSION.get = function () {
    return VERSION
  };

  // Public

  Alert.prototype.close = function close (element) {
    var rootElement = this._element;
    if (element) {
      rootElement = this._getRootElement(element);
    }

    var customEvent = this._triggerCloseEvent(rootElement);

    if (customEvent.isDefaultPrevented()) {
      return
    }

    this._removeElement(rootElement);
  };

  Alert.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY);
    this._element = null;
  };

  // Private

  Alert.prototype._getRootElement = function _getRootElement (element) {
    var selector = Util.getSelectorFromElement(element);
    var parent   = false;

    if (selector) {
      parent = document.querySelector(selector);
    }

    if (!parent) {
      parent = $(element).closest(("." + (ClassName.ALERT)))[0];
    }

    return parent
  };

  Alert.prototype._triggerCloseEvent = function _triggerCloseEvent (element) {
    var closeEvent = $.Event(Event.CLOSE);

    $(element).trigger(closeEvent);
    return closeEvent
  };

  Alert.prototype._removeElement = function _removeElement (element) {
      var this$1 = this;

    $(element).removeClass(ClassName.SHOW);

    if (!$(element).hasClass(ClassName.FADE)) {
      this._destroyElement(element);
      return
    }

    var transitionDuration = Util.getTransitionDurationFromElement(element);

    $(element)
      .one(Util.TRANSITION_END, function (event) { return this$1._destroyElement(element, event); })
      .emulateTransitionEnd(transitionDuration);
  };

  Alert.prototype._destroyElement = function _destroyElement (element) {
    $(element)
      .detach()
      .trigger(Event.CLOSED)
      .remove();
  };

  // Static

  Alert._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var $element = $(this);
      var data     = $element.data(DATA_KEY);

      if (!data) {
        data = new Alert(this);
        $element.data(DATA_KEY, data);
      }

      if (config === 'close') {
        data[config](this);
      }
    })
  };

  Alert._handleDismiss = function _handleDismiss (alertInstance) {
    return function (event) {
      if (event) {
        event.preventDefault();
      }

      alertInstance.close(this);
    }
  };

  Object.defineProperties( Alert, staticAccessors );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document).on(
    Event.CLICK_DATA_API,
    Selector.DISMISS,
    Alert._handleDismiss(new Alert())
  );

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME]             = Alert._jQueryInterface;
  $.fn[NAME].Constructor = Alert;
  $.fn[NAME].noConflict  = function () {
    $.fn[NAME] = JQUERY_NO_CONFLICT;
    return Alert._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): button.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$1                = 'button';
  var VERSION$1             = '4.4.1';
  var DATA_KEY$1            = 'bs.button';
  var EVENT_KEY$1           = "." + DATA_KEY$1;
  var DATA_API_KEY$1        = '.data-api';
  var JQUERY_NO_CONFLICT$1  = $.fn[NAME$1];

  var ClassName$1 = {
    ACTIVE : 'active',
    BUTTON : 'btn',
    FOCUS  : 'focus'
  };

  var Selector$1 = {
    DATA_TOGGLE_CARROT   : '[data-toggle^="button"]',
    DATA_TOGGLES         : '[data-toggle="buttons"]',
    DATA_TOGGLE          : '[data-toggle="button"]',
    DATA_TOGGLES_BUTTONS : '[data-toggle="buttons"] .btn',
    INPUT                : 'input:not([type="hidden"])',
    ACTIVE               : '.active',
    BUTTON               : '.btn'
  };

  var Event$1 = {
    CLICK_DATA_API      : ("click" + EVENT_KEY$1 + DATA_API_KEY$1),
    FOCUS_BLUR_DATA_API : "focus" + EVENT_KEY$1 + DATA_API_KEY$1 + " " +
                            "blur" + EVENT_KEY$1 + DATA_API_KEY$1,
    LOAD_DATA_API       : ("load" + EVENT_KEY$1 + DATA_API_KEY$1)
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Button = function Button(element) {
    this._element = element;
  };

  var staticAccessors$1 = { VERSION: { configurable: true } };

  // Getters

  staticAccessors$1.VERSION.get = function () {
    return VERSION$1
  };

  // Public

  Button.prototype.toggle = function toggle () {
    var triggerChangeEvent = true;
    var addAriaPressed = true;
    var rootElement = $(this._element).closest(
      Selector$1.DATA_TOGGLES
    )[0];

    if (rootElement) {
      var input = this._element.querySelector(Selector$1.INPUT);

      if (input) {
        if (input.type === 'radio') {
          if (input.checked &&
            this._element.classList.contains(ClassName$1.ACTIVE)) {
            triggerChangeEvent = false;
          } else {
            var activeElement = rootElement.querySelector(Selector$1.ACTIVE);

            if (activeElement) {
              $(activeElement).removeClass(ClassName$1.ACTIVE);
            }
          }
        } else if (input.type === 'checkbox') {
          if (this._element.tagName === 'LABEL' && input.checked === this._element.classList.contains(ClassName$1.ACTIVE)) {
            triggerChangeEvent = false;
          }
        } else {
          // if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input
          triggerChangeEvent = false;
        }

        if (triggerChangeEvent) {
          input.checked = !this._element.classList.contains(ClassName$1.ACTIVE);
          $(input).trigger('change');
        }

        input.focus();
        addAriaPressed = false;
      }
    }

    if (!(this._element.hasAttribute('disabled') || this._element.classList.contains('disabled'))) {
      if (addAriaPressed) {
        this._element.setAttribute('aria-pressed',
          !this._element.classList.contains(ClassName$1.ACTIVE));
      }

      if (triggerChangeEvent) {
        $(this._element).toggleClass(ClassName$1.ACTIVE);
      }
    }
  };

  Button.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY$1);
    this._element = null;
  };

  // Static

  Button._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$1);

      if (!data) {
        data = new Button(this);
        $(this).data(DATA_KEY$1, data);
      }

      if (config === 'toggle') {
        data[config]();
      }
    })
  };

  Object.defineProperties( Button, staticAccessors$1 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document)
    .on(Event$1.CLICK_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
      var button = event.target;

      if (!$(button).hasClass(ClassName$1.BUTTON)) {
        button = $(button).closest(Selector$1.BUTTON)[0];
      }

      if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) {
        event.preventDefault(); // work around Firefox bug #1540995
      } else {
        var inputBtn = button.querySelector(Selector$1.INPUT);

        if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) {
          event.preventDefault(); // work around Firefox bug #1540995
          return
        }

        Button._jQueryInterface.call($(button), 'toggle');
      }
    })
    .on(Event$1.FOCUS_BLUR_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
      var button = $(event.target).closest(Selector$1.BUTTON)[0];
      $(button).toggleClass(ClassName$1.FOCUS, /^focus(in)?$/.test(event.type));
    });

  $(window).on(Event$1.LOAD_DATA_API, function () {
    // ensure correct active class is set to match the controls' actual values/states

    // find all checkboxes/readio buttons inside data-toggle groups
    var buttons = [].slice.call(document.querySelectorAll(Selector$1.DATA_TOGGLES_BUTTONS));
    for (var i = 0, len = buttons.length; i < len; i++) {
      var button = buttons[i];
      var input = button.querySelector(Selector$1.INPUT);
      if (input.checked || input.hasAttribute('checked')) {
        button.classList.add(ClassName$1.ACTIVE);
      } else {
        button.classList.remove(ClassName$1.ACTIVE);
      }
    }

    // find all button toggles
    buttons = [].slice.call(document.querySelectorAll(Selector$1.DATA_TOGGLE));
    for (var i$1 = 0, len$1 = buttons.length; i$1 < len$1; i$1++) {
      var button$1 = buttons[i$1];
      if (button$1.getAttribute('aria-pressed') === 'true') {
        button$1.classList.add(ClassName$1.ACTIVE);
      } else {
        button$1.classList.remove(ClassName$1.ACTIVE);
      }
    }
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$1] = Button._jQueryInterface;
  $.fn[NAME$1].Constructor = Button;
  $.fn[NAME$1].noConflict = function () {
    $.fn[NAME$1] = JQUERY_NO_CONFLICT$1;
    return Button._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): carousel.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$2                   = 'carousel';
  var VERSION$2                = '4.4.1';
  var DATA_KEY$2               = 'bs.carousel';
  var EVENT_KEY$2              = "." + DATA_KEY$2;
  var DATA_API_KEY$2           = '.data-api';
  var JQUERY_NO_CONFLICT$2     = $.fn[NAME$2];
  var ARROW_LEFT_KEYCODE     = 37; // KeyboardEvent.which value for left arrow key
  var ARROW_RIGHT_KEYCODE    = 39; // KeyboardEvent.which value for right arrow key
  var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
  var SWIPE_THRESHOLD        = 40;

  var Default = {
    interval : 5000,
    keyboard : true,
    slide    : false,
    pause    : 'hover',
    wrap     : true,
    touch    : true
  };

  var DefaultType = {
    interval : '(number|boolean)',
    keyboard : 'boolean',
    slide    : '(boolean|string)',
    pause    : '(string|boolean)',
    wrap     : 'boolean',
    touch    : 'boolean'
  };

  var Direction = {
    NEXT     : 'next',
    PREV     : 'prev',
    LEFT     : 'left',
    RIGHT    : 'right'
  };

  var Event$2 = {
    SLIDE          : ("slide" + EVENT_KEY$2),
    SLID           : ("slid" + EVENT_KEY$2),
    KEYDOWN        : ("keydown" + EVENT_KEY$2),
    MOUSEENTER     : ("mouseenter" + EVENT_KEY$2),
    MOUSELEAVE     : ("mouseleave" + EVENT_KEY$2),
    TOUCHSTART     : ("touchstart" + EVENT_KEY$2),
    TOUCHMOVE      : ("touchmove" + EVENT_KEY$2),
    TOUCHEND       : ("touchend" + EVENT_KEY$2),
    POINTERDOWN    : ("pointerdown" + EVENT_KEY$2),
    POINTERUP      : ("pointerup" + EVENT_KEY$2),
    DRAG_START     : ("dragstart" + EVENT_KEY$2),
    LOAD_DATA_API  : ("load" + EVENT_KEY$2 + DATA_API_KEY$2),
    CLICK_DATA_API : ("click" + EVENT_KEY$2 + DATA_API_KEY$2)
  };

  var ClassName$2 = {
    CAROUSEL      : 'carousel',
    ACTIVE        : 'active',
    SLIDE         : 'slide',
    RIGHT         : 'carousel-item-right',
    LEFT          : 'carousel-item-left',
    NEXT          : 'carousel-item-next',
    PREV          : 'carousel-item-prev',
    ITEM          : 'carousel-item',
    POINTER_EVENT : 'pointer-event'
  };

  var Selector$2 = {
    ACTIVE      : '.active',
    ACTIVE_ITEM : '.active.carousel-item',
    ITEM        : '.carousel-item',
    ITEM_IMG    : '.carousel-item img',
    NEXT_PREV   : '.carousel-item-next, .carousel-item-prev',
    INDICATORS  : '.carousel-indicators',
    DATA_SLIDE  : '[data-slide], [data-slide-to]',
    DATA_RIDE   : '[data-ride="carousel"]'
  };

  var PointerType = {
    TOUCH : 'touch',
    PEN   : 'pen'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */
  var Carousel = function Carousel(element, config) {
    this._items       = null;
    this._interval    = null;
    this._activeElement = null;
    this._isPaused    = false;
    this._isSliding   = false;
    this.touchTimeout = null;
    this.touchStartX  = 0;
    this.touchDeltaX  = 0;

    this._config          = this._getConfig(config);
    this._element         = element;
    this._indicatorsElement = this._element.querySelector(Selector$2.INDICATORS);
    this._touchSupported  = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
    this._pointerEvent    = Boolean(window.PointerEvent || window.MSPointerEvent);

    this._addEventListeners();
  };

  var staticAccessors$2 = { VERSION: { configurable: true },Default: { configurable: true } };

  // Getters

  staticAccessors$2.VERSION.get = function () {
    return VERSION$2
  };

  staticAccessors$2.Default.get = function () {
    return Default
  };

  // Public

  Carousel.prototype.next = function next () {
    if (!this._isSliding) {
      this._slide(Direction.NEXT);
    }
  };

  Carousel.prototype.nextWhenVisible = function nextWhenVisible () {
    // Don't call next when the page isn't visible
    // or the carousel or its parent isn't visible
    if (!document.hidden &&
      ($(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden')) {
      this.next();
    }
  };

  Carousel.prototype.prev = function prev () {
    if (!this._isSliding) {
      this._slide(Direction.PREV);
    }
  };

  Carousel.prototype.pause = function pause (event) {
    if (!event) {
      this._isPaused = true;
    }

    if (this._element.querySelector(Selector$2.NEXT_PREV)) {
      Util.triggerTransitionEnd(this._element);
      this.cycle(true);
    }

    clearInterval(this._interval);
    this._interval = null;
  };

  Carousel.prototype.cycle = function cycle (event) {
    if (!event) {
      this._isPaused = false;
    }

    if (this._interval) {
      clearInterval(this._interval);
      this._interval = null;
    }

    if (this._config.interval && !this._isPaused) {
      this._interval = setInterval(
        (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
        this._config.interval
      );
    }
  };

  Carousel.prototype.to = function to (index) {
      var this$1 = this;

    this._activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);

    var activeIndex = this._getItemIndex(this._activeElement);

    if (index > this._items.length - 1 || index < 0) {
      return
    }

    if (this._isSliding) {
      $(this._element).one(Event$2.SLID, function () { return this$1.to(index); });
      return
    }

    if (activeIndex === index) {
      this.pause();
      this.cycle();
      return
    }

    var direction = index > activeIndex
      ? Direction.NEXT
      : Direction.PREV;

    this._slide(direction, this._items[index]);
  };

  Carousel.prototype.dispose = function dispose () {
    $(this._element).off(EVENT_KEY$2);
    $.removeData(this._element, DATA_KEY$2);

    this._items           = null;
    this._config          = null;
    this._element         = null;
    this._interval        = null;
    this._isPaused        = null;
    this._isSliding       = null;
    this._activeElement   = null;
    this._indicatorsElement = null;
  };

  // Private

  Carousel.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, Default,
      config);
    Util.typeCheckConfig(NAME$2, config, DefaultType);
    return config
  };

  Carousel.prototype._handleSwipe = function _handleSwipe () {
    var absDeltax = Math.abs(this.touchDeltaX);

    if (absDeltax <= SWIPE_THRESHOLD) {
      return
    }

    var direction = absDeltax / this.touchDeltaX;

    this.touchDeltaX = 0;

    // swipe left
    if (direction > 0) {
      this.prev();
    }

    // swipe right
    if (direction < 0) {
      this.next();
    }
  };

  Carousel.prototype._addEventListeners = function _addEventListeners () {
      var this$1 = this;

    if (this._config.keyboard) {
      $(this._element)
        .on(Event$2.KEYDOWN, function (event) { return this$1._keydown(event); });
    }

    if (this._config.pause === 'hover') {
      $(this._element)
        .on(Event$2.MOUSEENTER, function (event) { return this$1.pause(event); })
        .on(Event$2.MOUSELEAVE, function (event) { return this$1.cycle(event); });
    }

    if (this._config.touch) {
      this._addTouchEventListeners();
    }
  };

  Carousel.prototype._addTouchEventListeners = function _addTouchEventListeners () {
      var this$1 = this;

    if (!this._touchSupported) {
      return
    }

    var start = function (event) {
      if (this$1._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
        this$1.touchStartX = event.originalEvent.clientX;
      } else if (!this$1._pointerEvent) {
        this$1.touchStartX = event.originalEvent.touches[0].clientX;
      }
    };

    var move = function (event) {
      // ensure swiping with one touch and not pinching
      if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
        this$1.touchDeltaX = 0;
      } else {
        this$1.touchDeltaX = event.originalEvent.touches[0].clientX - this$1.touchStartX;
      }
    };

    var end = function (event) {
      if (this$1._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
        this$1.touchDeltaX = event.originalEvent.clientX - this$1.touchStartX;
      }

      this$1._handleSwipe();
      if (this$1._config.pause === 'hover') {
        // If it's a touch-enabled device, mouseenter/leave are fired as
        // part of the mouse compatibility events on first tap - the carousel
        // would stop cycling until user tapped out of it;
        // here, we listen for touchend, explicitly pause the carousel
        // (as if it's the second time we tap on it, mouseenter compat event
        // is NOT fired) and after a timeout (to allow for mouse compatibility
        // events to fire) we explicitly restart cycling

        this$1.pause();
        if (this$1.touchTimeout) {
          clearTimeout(this$1.touchTimeout);
        }
        this$1.touchTimeout = setTimeout(function (event) { return this$1.cycle(event); }, TOUCHEVENT_COMPAT_WAIT + this$1._config.interval);
      }
    };

    $(this._element.querySelectorAll(Selector$2.ITEM_IMG)).on(Event$2.DRAG_START, function (e) { return e.preventDefault(); });
    if (this._pointerEvent) {
      $(this._element).on(Event$2.POINTERDOWN, function (event) { return start(event); });
      $(this._element).on(Event$2.POINTERUP, function (event) { return end(event); });

      this._element.classList.add(ClassName$2.POINTER_EVENT);
    } else {
      $(this._element).on(Event$2.TOUCHSTART, function (event) { return start(event); });
      $(this._element).on(Event$2.TOUCHMOVE, function (event) { return move(event); });
      $(this._element).on(Event$2.TOUCHEND, function (event) { return end(event); });
    }
  };

  Carousel.prototype._keydown = function _keydown (event) {
    if (/input|textarea/i.test(event.target.tagName)) {
      return
    }

    switch (event.which) {
      case ARROW_LEFT_KEYCODE:
        event.preventDefault();
        this.prev();
        break
      case ARROW_RIGHT_KEYCODE:
        event.preventDefault();
        this.next();
        break
      default:
    }
  };

  Carousel.prototype._getItemIndex = function _getItemIndex (element) {
    this._items = element && element.parentNode
      ? [].slice.call(element.parentNode.querySelectorAll(Selector$2.ITEM))
      : [];
    return this._items.indexOf(element)
  };

  Carousel.prototype._getItemByDirection = function _getItemByDirection (direction, activeElement) {
    var isNextDirection = direction === Direction.NEXT;
    var isPrevDirection = direction === Direction.PREV;
    var activeIndex   = this._getItemIndex(activeElement);
    var lastItemIndex = this._items.length - 1;
    var isGoingToWrap = isPrevDirection && activeIndex === 0 ||
                            isNextDirection && activeIndex === lastItemIndex;

    if (isGoingToWrap && !this._config.wrap) {
      return activeElement
    }

    var delta   = direction === Direction.PREV ? -1 : 1;
    var itemIndex = (activeIndex + delta) % this._items.length;

    return itemIndex === -1
      ? this._items[this._items.length - 1] : this._items[itemIndex]
  };

  Carousel.prototype._triggerSlideEvent = function _triggerSlideEvent (relatedTarget, eventDirectionName) {
    var targetIndex = this._getItemIndex(relatedTarget);
    var fromIndex = this._getItemIndex(this._element.querySelector(Selector$2.ACTIVE_ITEM));
    var slideEvent = $.Event(Event$2.SLIDE, {
      relatedTarget: relatedTarget,
      direction: eventDirectionName,
      from: fromIndex,
      to: targetIndex
    });

    $(this._element).trigger(slideEvent);

    return slideEvent
  };

  Carousel.prototype._setActiveIndicatorElement = function _setActiveIndicatorElement (element) {
    if (this._indicatorsElement) {
      var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector$2.ACTIVE));
      $(indicators)
        .removeClass(ClassName$2.ACTIVE);

      var nextIndicator = this._indicatorsElement.children[
        this._getItemIndex(element)
      ];

      if (nextIndicator) {
        $(nextIndicator).addClass(ClassName$2.ACTIVE);
      }
    }
  };

  Carousel.prototype._slide = function _slide (direction, element) {
      var this$1 = this;

    var activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);
    var activeElementIndex = this._getItemIndex(activeElement);
    var nextElement = element || activeElement &&
      this._getItemByDirection(direction, activeElement);
    var nextElementIndex = this._getItemIndex(nextElement);
    var isCycling = Boolean(this._interval);

    var directionalClassName;
    var orderClassName;
    var eventDirectionName;

    if (direction === Direction.NEXT) {
      directionalClassName = ClassName$2.LEFT;
      orderClassName = ClassName$2.NEXT;
      eventDirectionName = Direction.LEFT;
    } else {
      directionalClassName = ClassName$2.RIGHT;
      orderClassName = ClassName$2.PREV;
      eventDirectionName = Direction.RIGHT;
    }

    if (nextElement && $(nextElement).hasClass(ClassName$2.ACTIVE)) {
      this._isSliding = false;
      return
    }

    var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
    if (slideEvent.isDefaultPrevented()) {
      return
    }

    if (!activeElement || !nextElement) {
      // Some weirdness is happening, so we bail
      return
    }

    this._isSliding = true;

    if (isCycling) {
      this.pause();
    }

    this._setActiveIndicatorElement(nextElement);

    var slidEvent = $.Event(Event$2.SLID, {
      relatedTarget: nextElement,
      direction: eventDirectionName,
      from: activeElementIndex,
      to: nextElementIndex
    });

    if ($(this._element).hasClass(ClassName$2.SLIDE)) {
      $(nextElement).addClass(orderClassName);

      Util.reflow(nextElement);

      $(activeElement).addClass(directionalClassName);
      $(nextElement).addClass(directionalClassName);

      var nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10);
      if (nextElementInterval) {
        this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
        this._config.interval = nextElementInterval;
      } else {
        this._config.interval = this._config.defaultInterval || this._config.interval;
      }

      var transitionDuration = Util.getTransitionDurationFromElement(activeElement);

      $(activeElement)
        .one(Util.TRANSITION_END, function () {
          $(nextElement)
            .removeClass((directionalClassName + " " + orderClassName))
            .addClass(ClassName$2.ACTIVE);

          $(activeElement).removeClass(((ClassName$2.ACTIVE) + " " + orderClassName + " " + directionalClassName));

          this$1._isSliding = false;

          setTimeout(function () { return $(this$1._element).trigger(slidEvent); }, 0);
        })
        .emulateTransitionEnd(transitionDuration);
    } else {
      $(activeElement).removeClass(ClassName$2.ACTIVE);
      $(nextElement).addClass(ClassName$2.ACTIVE);

      this._isSliding = false;
      $(this._element).trigger(slidEvent);
    }

    if (isCycling) {
      this.cycle();
    }
  };

  // Static

  Carousel._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$2);
      var _config = Object.assign({}, Default,
        $(this).data());

      if (typeof config === 'object') {
        _config = Object.assign({}, _config,
          config);
      }

      var action = typeof config === 'string' ? config : _config.slide;

      if (!data) {
        data = new Carousel(this, _config);
        $(this).data(DATA_KEY$2, data);
      }

      if (typeof config === 'number') {
        data.to(config);
      } else if (typeof action === 'string') {
        if (typeof data[action] === 'undefined') {
          throw new TypeError(("No method named \"" + action + "\""))
        }
        data[action]();
      } else if (_config.interval && _config.ride) {
        data.pause();
        data.cycle();
      }
    })
  };

  Carousel._dataApiClickHandler = function _dataApiClickHandler (event) {
    var selector = Util.getSelectorFromElement(this);

    if (!selector) {
      return
    }

    var target = $(selector)[0];

    if (!target || !$(target).hasClass(ClassName$2.CAROUSEL)) {
      return
    }

    var config = Object.assign({}, $(target).data(),
      $(this).data());
    var slideIndex = this.getAttribute('data-slide-to');

    if (slideIndex) {
      config.interval = false;
    }

    Carousel._jQueryInterface.call($(target), config);

    if (slideIndex) {
      $(target).data(DATA_KEY$2).to(slideIndex);
    }

    event.preventDefault();
  };

  Object.defineProperties( Carousel, staticAccessors$2 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document)
    .on(Event$2.CLICK_DATA_API, Selector$2.DATA_SLIDE, Carousel._dataApiClickHandler);

  $(window).on(Event$2.LOAD_DATA_API, function () {
    var carousels = [].slice.call(document.querySelectorAll(Selector$2.DATA_RIDE));
    for (var i = 0, len = carousels.length; i < len; i++) {
      var $carousel = $(carousels[i]);
      Carousel._jQueryInterface.call($carousel, $carousel.data());
    }
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$2] = Carousel._jQueryInterface;
  $.fn[NAME$2].Constructor = Carousel;
  $.fn[NAME$2].noConflict = function () {
    $.fn[NAME$2] = JQUERY_NO_CONFLICT$2;
    return Carousel._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): collapse.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$3                = 'collapse';
  var VERSION$3             = '4.4.1';
  var DATA_KEY$3            = 'bs.collapse';
  var EVENT_KEY$3           = "." + DATA_KEY$3;
  var DATA_API_KEY$3        = '.data-api';
  var JQUERY_NO_CONFLICT$3  = $.fn[NAME$3];

  var Default$1 = {
    toggle : true,
    parent : ''
  };

  var DefaultType$1 = {
    toggle : 'boolean',
    parent : '(string|element)'
  };

  var Event$3 = {
    SHOW           : ("show" + EVENT_KEY$3),
    SHOWN          : ("shown" + EVENT_KEY$3),
    HIDE           : ("hide" + EVENT_KEY$3),
    HIDDEN         : ("hidden" + EVENT_KEY$3),
    CLICK_DATA_API : ("click" + EVENT_KEY$3 + DATA_API_KEY$3)
  };

  var ClassName$3 = {
    SHOW       : 'show',
    COLLAPSE   : 'collapse',
    COLLAPSING : 'collapsing',
    COLLAPSED  : 'collapsed'
  };

  var Dimension = {
    WIDTH  : 'width',
    HEIGHT : 'height'
  };

  var Selector$3 = {
    ACTIVES     : '.show, .collapsing',
    DATA_TOGGLE : '[data-toggle="collapse"]'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Collapse = function Collapse(element, config) {
    this._isTransitioning = false;
    this._element       = element;
    this._config        = this._getConfig(config);
    this._triggerArray  = [].slice.call(document.querySelectorAll(
      "[data-toggle=\"collapse\"][href=\"#" + (element.id) + "\"]," +
      "[data-toggle=\"collapse\"][data-target=\"#" + (element.id) + "\"]"
    ));

    var toggleList = [].slice.call(document.querySelectorAll(Selector$3.DATA_TOGGLE));
    for (var i = 0, len = toggleList.length; i < len; i++) {
      var elem = toggleList[i];
      var selector = Util.getSelectorFromElement(elem);
      var filterElement = [].slice.call(document.querySelectorAll(selector))
        .filter(function (foundElem) { return foundElem === element; });

      if (selector !== null && filterElement.length > 0) {
        this._selector = selector;
        this._triggerArray.push(elem);
      }
    }

    this._parent = this._config.parent ? this._getParent() : null;

    if (!this._config.parent) {
      this._addAriaAndCollapsedClass(this._element, this._triggerArray);
    }

    if (this._config.toggle) {
      this.toggle();
    }
  };

  var staticAccessors$3 = { VERSION: { configurable: true },Default: { configurable: true } };

  // Getters

  staticAccessors$3.VERSION.get = function () {
    return VERSION$3
  };

  staticAccessors$3.Default.get = function () {
    return Default$1
  };

  // Public

  Collapse.prototype.toggle = function toggle () {
    if ($(this._element).hasClass(ClassName$3.SHOW)) {
      this.hide();
    } else {
      this.show();
    }
  };

  Collapse.prototype.show = function show () {
      var this$1 = this;

    if (this._isTransitioning ||
      $(this._element).hasClass(ClassName$3.SHOW)) {
      return
    }

    var actives;
    var activesData;

    if (this._parent) {
      actives = [].slice.call(this._parent.querySelectorAll(Selector$3.ACTIVES))
        .filter(function (elem) {
          if (typeof this$1._config.parent === 'string') {
            return elem.getAttribute('data-parent') === this$1._config.parent
          }

          return elem.classList.contains(ClassName$3.COLLAPSE)
        });

      if (actives.length === 0) {
        actives = null;
      }
    }

    if (actives) {
      activesData = $(actives).not(this._selector).data(DATA_KEY$3);
      if (activesData && activesData._isTransitioning) {
        return
      }
    }

    var startEvent = $.Event(Event$3.SHOW);
    $(this._element).trigger(startEvent);
    if (startEvent.isDefaultPrevented()) {
      return
    }

    if (actives) {
      Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide');
      if (!activesData) {
        $(actives).data(DATA_KEY$3, null);
      }
    }

    var dimension = this._getDimension();

    $(this._element)
      .removeClass(ClassName$3.COLLAPSE)
      .addClass(ClassName$3.COLLAPSING);

    this._element.style[dimension] = 0;

    if (this._triggerArray.length) {
      $(this._triggerArray)
        .removeClass(ClassName$3.COLLAPSED)
        .attr('aria-expanded', true);
    }

    this.setTransitioning(true);

    var complete = function () {
      $(this$1._element)
        .removeClass(ClassName$3.COLLAPSING)
        .addClass(ClassName$3.COLLAPSE)
        .addClass(ClassName$3.SHOW);

      this$1._element.style[dimension] = '';

      this$1.setTransitioning(false);

      $(this$1._element).trigger(Event$3.SHOWN);
    };

    var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
    var scrollSize = "scroll" + capitalizedDimension;
    var transitionDuration = Util.getTransitionDurationFromElement(this._element);

    $(this._element)
      .one(Util.TRANSITION_END, complete)
      .emulateTransitionEnd(transitionDuration);

    this._element.style[dimension] = (this._element[scrollSize]) + "px";
  };

  Collapse.prototype.hide = function hide () {
      var this$1 = this;

    if (this._isTransitioning ||
      !$(this._element).hasClass(ClassName$3.SHOW)) {
      return
    }

    var startEvent = $.Event(Event$3.HIDE);
    $(this._element).trigger(startEvent);
    if (startEvent.isDefaultPrevented()) {
      return
    }

    var dimension = this._getDimension();

    this._element.style[dimension] = (this._element.getBoundingClientRect()[dimension]) + "px";

    Util.reflow(this._element);

    $(this._element)
      .addClass(ClassName$3.COLLAPSING)
      .removeClass(ClassName$3.COLLAPSE)
      .removeClass(ClassName$3.SHOW);

    var triggerArrayLength = this._triggerArray.length;
    if (triggerArrayLength > 0) {
      for (var i = 0; i < triggerArrayLength; i++) {
        var trigger = this._triggerArray[i];
        var selector = Util.getSelectorFromElement(trigger);

        if (selector !== null) {
          var $elem = $([].slice.call(document.querySelectorAll(selector)));
          if (!$elem.hasClass(ClassName$3.SHOW)) {
            $(trigger).addClass(ClassName$3.COLLAPSED)
              .attr('aria-expanded', false);
          }
        }
      }
    }

    this.setTransitioning(true);

    var complete = function () {
      this$1.setTransitioning(false);
      $(this$1._element)
        .removeClass(ClassName$3.COLLAPSING)
        .addClass(ClassName$3.COLLAPSE)
        .trigger(Event$3.HIDDEN);
    };

    this._element.style[dimension] = '';
    var transitionDuration = Util.getTransitionDurationFromElement(this._element);

    $(this._element)
      .one(Util.TRANSITION_END, complete)
      .emulateTransitionEnd(transitionDuration);
  };

  Collapse.prototype.setTransitioning = function setTransitioning (isTransitioning) {
    this._isTransitioning = isTransitioning;
  };

  Collapse.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY$3);

    this._config        = null;
    this._parent        = null;
    this._element       = null;
    this._triggerArray  = null;
    this._isTransitioning = null;
  };

  // Private

  Collapse.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, Default$1,
      config);
    config.toggle = Boolean(config.toggle); // Coerce string values
    Util.typeCheckConfig(NAME$3, config, DefaultType$1);
    return config
  };

  Collapse.prototype._getDimension = function _getDimension () {
    var hasWidth = $(this._element).hasClass(Dimension.WIDTH);
    return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT
  };

  Collapse.prototype._getParent = function _getParent () {
      var this$1 = this;

    var parent;

    if (Util.isElement(this._config.parent)) {
      parent = this._config.parent;

      // It's a jQuery object
      if (typeof this._config.parent.jquery !== 'undefined') {
        parent = this._config.parent[0];
      }
    } else {
      parent = document.querySelector(this._config.parent);
    }

    var selector =
      "[data-toggle=\"collapse\"][data-parent=\"" + (this._config.parent) + "\"]";

    var children = [].slice.call(parent.querySelectorAll(selector));
    $(children).each(function (i, element) {
      this$1._addAriaAndCollapsedClass(
        Collapse._getTargetFromElement(element),
        [element]
      );
    });

    return parent
  };

  Collapse.prototype._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass (element, triggerArray) {
    var isOpen = $(element).hasClass(ClassName$3.SHOW);

    if (triggerArray.length) {
      $(triggerArray)
        .toggleClass(ClassName$3.COLLAPSED, !isOpen)
        .attr('aria-expanded', isOpen);
    }
  };

  // Static

  Collapse._getTargetFromElement = function _getTargetFromElement (element) {
    var selector = Util.getSelectorFromElement(element);
    return selector ? document.querySelector(selector) : null
  };

  Collapse._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var $this = $(this);
      var data    = $this.data(DATA_KEY$3);
      var _config = Object.assign({}, Default$1,
        $this.data(),
        typeof config === 'object' && config ? config : {});

      if (!data && _config.toggle && /show|hide/.test(config)) {
        _config.toggle = false;
      }

      if (!data) {
        data = new Collapse(this, _config);
        $this.data(DATA_KEY$3, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config]();
      }
    })
  };

  Object.defineProperties( Collapse, staticAccessors$3 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document).on(Event$3.CLICK_DATA_API, Selector$3.DATA_TOGGLE, function (event) {
    // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
    if (event.currentTarget.tagName === 'A') {
      event.preventDefault();
    }

    var $trigger = $(this);
    var selector = Util.getSelectorFromElement(this);
    var selectors = [].slice.call(document.querySelectorAll(selector));

    $(selectors).each(function () {
      var $target = $(this);
      var data    = $target.data(DATA_KEY$3);
      var config  = data ? 'toggle' : $trigger.data();
      Collapse._jQueryInterface.call($target, config);
    });
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$3] = Collapse._jQueryInterface;
  $.fn[NAME$3].Constructor = Collapse;
  $.fn[NAME$3].noConflict = function () {
    $.fn[NAME$3] = JQUERY_NO_CONFLICT$3;
    return Collapse._jQueryInterface
  };

  var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && typeof navigator !== 'undefined';

  var timeoutDuration = (function(){
    var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
    for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
      if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
        return 1;
      }
    }
    return 0;
  }());

  function microtaskDebounce(fn) {
    var called = false;
    return function () {
      if (called) {
        return
      }
      called = true;
      window.Promise.resolve().then(function () {
        called = false;
        fn();
      });
    }
  }

  function taskDebounce(fn) {
    var scheduled = false;
    return function () {
      if (!scheduled) {
        scheduled = true;
        setTimeout(function () {
          scheduled = false;
          fn();
        }, timeoutDuration);
      }
    };
  }

  var supportsMicroTasks = isBrowser && window.Promise;


  /**
  * Create a debounced version of a method, that's asynchronously deferred
  * but called in the minimum time possible.
  *
  * @method
  * @memberof Popper.Utils
  * @argument {Function} fn
  * @returns {Function}
  */
  var debounce = (supportsMicroTasks
    ? microtaskDebounce
    : taskDebounce);

  /**
   * Check if the given variable is a function
   * @method
   * @memberof Popper.Utils
   * @argument {Any} functionToCheck - variable to check
   * @returns {Boolean} answer to: is a function?
   */
  function isFunction(functionToCheck) {
    var getType = {};
    return (
      functionToCheck &&
      getType.toString.call(functionToCheck) === '[object Function]'
    );
  }

  /**
   * Get CSS computed property of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Eement} element
   * @argument {String} property
   */
  function getStyleComputedProperty(element, property) {
    if (element.nodeType !== 1) {
      return [];
    }
    // NOTE: 1 DOM access here
    var window = element.ownerDocument.defaultView;
    var css = window.getComputedStyle(element, null);
    return property ? css[property] : css;
  }

  /**
   * Returns the parentNode or the host of the element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} parent
   */
  function getParentNode(element) {
    if (element.nodeName === 'HTML') {
      return element;
    }
    return element.parentNode || element.host;
  }

  /**
   * Returns the scrolling parent of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} scroll parent
   */
  function getScrollParent(element) {
    // Return body, `getScroll` will take care to get the correct `scrollTop` from it
    if (!element) {
      return document.body
    }

    switch (element.nodeName) {
      case 'HTML':
      case 'BODY':
        return element.ownerDocument.body
      case '#document':
        return element.body
    }

    // Firefox want us to check `-x` and `-y` variations as well
    var ref = getStyleComputedProperty(element);
    var overflow = ref.overflow;
    var overflowX = ref.overflowX;
    var overflowY = ref.overflowY;
    if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) {
      return element;
    }

    return getScrollParent(getParentNode(element));
  }

  /**
   * Returns the reference node of the reference object, or the reference object itself.
   * @method
   * @memberof Popper.Utils
   * @param {Element|Object} reference - the reference element (the popper will be relative to this)
   * @returns {Element} parent
   */
  function getReferenceNode(reference) {
    return reference && reference.referenceNode ? reference.referenceNode : reference;
  }

  var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode);
  var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent);

  /**
   * Determines if the browser is Internet Explorer
   * @method
   * @memberof Popper.Utils
   * @param {Number} version to check
   * @returns {Boolean} isIE
   */
  function isIE(version) {
    if (version === 11) {
      return isIE11;
    }
    if (version === 10) {
      return isIE10;
    }
    return isIE11 || isIE10;
  }

  /**
   * Returns the offset parent of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} offset parent
   */
  function getOffsetParent(element) {
    if (!element) {
      return document.documentElement;
    }

    var noOffsetParent = isIE(10) ? document.body : null;

    // NOTE: 1 DOM access here
    var offsetParent = element.offsetParent || null;
    // Skip hidden elements which don't have an offsetParent
    while (offsetParent === noOffsetParent && element.nextElementSibling) {
      offsetParent = (element = element.nextElementSibling).offsetParent;
    }

    var nodeName = offsetParent && offsetParent.nodeName;

    if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
      return element ? element.ownerDocument.documentElement : document.documentElement;
    }

    // .offsetParent will return the closest TH, TD or TABLE in case
    // no offsetParent is present, I hate this job...
    if (
      ['TH', 'TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 &&
      getStyleComputedProperty(offsetParent, 'position') === 'static'
    ) {
      return getOffsetParent(offsetParent);
    }

    return offsetParent;
  }

  function isOffsetContainer(element) {
    var nodeName = element.nodeName;
    if (nodeName === 'BODY') {
      return false;
    }
    return (
      nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element
    );
  }

  /**
   * Finds the root node (document, shadowDOM root) of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} node
   * @returns {Element} root node
   */
  function getRoot(node) {
    if (node.parentNode !== null) {
      return getRoot(node.parentNode);
    }

    return node;
  }

  /**
   * Finds the offset parent common to the two provided nodes
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element1
   * @argument {Element} element2
   * @returns {Element} common offset parent
   */
  function findCommonOffsetParent(element1, element2) {
    // This check is needed to avoid errors in case one of the elements isn't defined for any reason
    if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
      return document.documentElement;
    }

    // Here we make sure to give as "start" the element that comes first in the DOM
    var order =
      element1.compareDocumentPosition(element2) &
      Node.DOCUMENT_POSITION_FOLLOWING;
    var start = order ? element1 : element2;
    var end = order ? element2 : element1;

    // Get common ancestor container
    var range = document.createRange();
    range.setStart(start, 0);
    range.setEnd(end, 0);
    var commonAncestorContainer = range.commonAncestorContainer;

    // Both nodes are inside #document
    if (
      (element1 !== commonAncestorContainer &&
        element2 !== commonAncestorContainer) ||
      start.contains(end)
    ) {
      if (isOffsetContainer(commonAncestorContainer)) {
        return commonAncestorContainer;
      }

      return getOffsetParent(commonAncestorContainer);
    }

    // one of the nodes is inside shadowDOM, find which one
    var element1root = getRoot(element1);
    if (element1root.host) {
      return findCommonOffsetParent(element1root.host, element2);
    } else {
      return findCommonOffsetParent(element1, getRoot(element2).host);
    }
  }

  /**
   * Gets the scroll value of the given element in the given side (top and left)
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @argument {String} side `top` or `left`
   * @returns {number} amount of scrolled pixels
   */
  function getScroll(element, side) {
    if ( side === void 0 ) { side = 'top'; }

    var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
    var nodeName = element.nodeName;

    if (nodeName === 'BODY' || nodeName === 'HTML') {
      var html = element.ownerDocument.documentElement;
      var scrollingElement = element.ownerDocument.scrollingElement || html;
      return scrollingElement[upperSide];
    }

    return element[upperSide];
  }

  /*
   * Sum or subtract the element scroll values (left and top) from a given rect object
   * @method
   * @memberof Popper.Utils
   * @param {Object} rect - Rect object you want to change
   * @param {HTMLElement} element - The element from the function reads the scroll values
   * @param {Boolean} subtract - set to true if you want to subtract the scroll values
   * @return {Object} rect - The modifier rect object
   */
  function includeScroll(rect, element, subtract) {
    if ( subtract === void 0 ) { subtract = false; }

    var scrollTop = getScroll(element, 'top');
    var scrollLeft = getScroll(element, 'left');
    var modifier = subtract ? -1 : 1;
    rect.top += scrollTop * modifier;
    rect.bottom += scrollTop * modifier;
    rect.left += scrollLeft * modifier;
    rect.right += scrollLeft * modifier;
    return rect;
  }

  /*
   * Helper to detect borders of a given element
   * @method
   * @memberof Popper.Utils
   * @param {CSSStyleDeclaration} styles
   * Result of `getStyleComputedProperty` on the given element
   * @param {String} axis - `x` or `y`
   * @return {number} borders - The borders size of the given axis
   */

  function getBordersSize(styles, axis) {
    var sideA = axis === 'x' ? 'Left' : 'Top';
    var sideB = sideA === 'Left' ? 'Right' : 'Bottom';

    return (
      parseFloat(styles[("border" + sideA + "Width")], 10) +
      parseFloat(styles[("border" + sideB + "Width")], 10)
    );
  }

  function getSize(axis, body, html, computedStyle) {
    return Math.max(
      body[("offset" + axis)],
      body[("scroll" + axis)],
      html[("client" + axis)],
      html[("offset" + axis)],
      html[("scroll" + axis)],
      isIE(10)
        ? (parseInt(html[("offset" + axis)]) + 
        parseInt(computedStyle[("margin" + (axis === 'Height' ? 'Top' : 'Left'))]) + 
        parseInt(computedStyle[("margin" + (axis === 'Height' ? 'Bottom' : 'Right'))]))
      : 0 
    );
  }

  function getWindowSizes(document) {
    var body = document.body;
    var html = document.documentElement;
    var computedStyle = isIE(10) && getComputedStyle(html);

    return {
      height: getSize('Height', body, html, computedStyle),
      width: getSize('Width', body, html, computedStyle),
    };
  }

  /**
   * Given element offsets, generate an output similar to getBoundingClientRect
   * @method
   * @memberof Popper.Utils
   * @argument {Object} offsets
   * @returns {Object} ClientRect like output
   */
  function getClientRect(offsets) {
    return Object.assign({}, offsets,
      {right: offsets.left + offsets.width,
      bottom: offsets.top + offsets.height});
  }

  /**
   * Get bounding client rect of given element
   * @method
   * @memberof Popper.Utils
   * @param {HTMLElement} element
   * @return {Object} client rect
   */
  function getBoundingClientRect(element) {
    var rect = {};

    // IE10 10 FIX: Please, don't ask, the element isn't
    // considered in DOM in some circumstances...
    // This isn't reproducible in IE10 compatibility mode of IE11
    try {
      if (isIE(10)) {
        rect = element.getBoundingClientRect();
        var scrollTop = getScroll(element, 'top');
        var scrollLeft = getScroll(element, 'left');
        rect.top += scrollTop;
        rect.left += scrollLeft;
        rect.bottom += scrollTop;
        rect.right += scrollLeft;
      }
      else {
        rect = element.getBoundingClientRect();
      }
    }
    catch(e){}

    var result = {
      left: rect.left,
      top: rect.top,
      width: rect.right - rect.left,
      height: rect.bottom - rect.top,
    };

    // subtract scrollbar size from sizes
    var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {};
    var width =
      sizes.width || element.clientWidth || result.width;
    var height =
      sizes.height || element.clientHeight || result.height;

    var horizScrollbar = element.offsetWidth - width;
    var vertScrollbar = element.offsetHeight - height;

    // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
    // we make this check conditional for performance reasons
    if (horizScrollbar || vertScrollbar) {
      var styles = getStyleComputedProperty(element);
      horizScrollbar -= getBordersSize(styles, 'x');
      vertScrollbar -= getBordersSize(styles, 'y');

      result.width -= horizScrollbar;
      result.height -= vertScrollbar;
    }

    return getClientRect(result);
  }

  function getOffsetRectRelativeToArbitraryNode(children, parent, fixedPosition) {
    if ( fixedPosition === void 0 ) { fixedPosition = false; }

    var isIE10 = isIE(10);
    var isHTML = parent.nodeName === 'HTML';
    var childrenRect = getBoundingClientRect(children);
    var parentRect = getBoundingClientRect(parent);
    var scrollParent = getScrollParent(children);

    var styles = getStyleComputedProperty(parent);
    var borderTopWidth = parseFloat(styles.borderTopWidth, 10);
    var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10);

    // In cases where the parent is fixed, we must ignore negative scroll in offset calc
    if(fixedPosition && isHTML) {
      parentRect.top = Math.max(parentRect.top, 0);
      parentRect.left = Math.max(parentRect.left, 0);
    }
    var offsets = getClientRect({
      top: childrenRect.top - parentRect.top - borderTopWidth,
      left: childrenRect.left - parentRect.left - borderLeftWidth,
      width: childrenRect.width,
      height: childrenRect.height,
    });
    offsets.marginTop = 0;
    offsets.marginLeft = 0;

    // Subtract margins of documentElement in case it's being used as parent
    // we do this only on HTML because it's the only element that behaves
    // differently when margins are applied to it. The margins are included in
    // the box of the documentElement, in the other cases not.
    if (!isIE10 && isHTML) {
      var marginTop = parseFloat(styles.marginTop, 10);
      var marginLeft = parseFloat(styles.marginLeft, 10);

      offsets.top -= borderTopWidth - marginTop;
      offsets.bottom -= borderTopWidth - marginTop;
      offsets.left -= borderLeftWidth - marginLeft;
      offsets.right -= borderLeftWidth - marginLeft;

      // Attach marginTop and marginLeft because in some circumstances we may need them
      offsets.marginTop = marginTop;
      offsets.marginLeft = marginLeft;
    }

    if (
      isIE10 && !fixedPosition
        ? parent.contains(scrollParent)
        : parent === scrollParent && scrollParent.nodeName !== 'BODY'
    ) {
      offsets = includeScroll(offsets, parent);
    }

    return offsets;
  }

  function getViewportOffsetRectRelativeToArtbitraryNode(element, excludeScroll) {
    if ( excludeScroll === void 0 ) { excludeScroll = false; }

    var html = element.ownerDocument.documentElement;
    var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
    var width = Math.max(html.clientWidth, window.innerWidth || 0);
    var height = Math.max(html.clientHeight, window.innerHeight || 0);

    var scrollTop = !excludeScroll ? getScroll(html) : 0;
    var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0;

    var offset = {
      top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
      left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
      width: width,
      height: height,
    };

    return getClientRect(offset);
  }

  /**
   * Check if the given element is fixed or is inside a fixed parent
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @argument {Element} customContainer
   * @returns {Boolean} answer to "isFixed?"
   */
  function isFixed(element) {
    var nodeName = element.nodeName;
    if (nodeName === 'BODY' || nodeName === 'HTML') {
      return false;
    }
    if (getStyleComputedProperty(element, 'position') === 'fixed') {
      return true;
    }
    var parentNode = getParentNode(element);
    if (!parentNode) {
      return false;
    }
    return isFixed(parentNode);
  }

  /**
   * Finds the first parent of an element that has a transformed property defined
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} first transformed parent or documentElement
   */

  function getFixedPositionOffsetParent(element) {
    // This check is needed to avoid errors in case one of the elements isn't defined for any reason
     if (!element || !element.parentElement || isIE()) {
      return document.documentElement;
    }
    var el = element.parentElement;
    while (el && getStyleComputedProperty(el, 'transform') === 'none') {
      el = el.parentElement;
    }
    return el || document.documentElement;

  }

  /**
   * Computed the boundaries limits and return them
   * @method
   * @memberof Popper.Utils
   * @param {HTMLElement} popper
   * @param {HTMLElement} reference
   * @param {number} padding
   * @param {HTMLElement} boundariesElement - Element used to define the boundaries
   * @param {Boolean} fixedPosition - Is in fixed position mode
   * @returns {Object} Coordinates of the boundaries
   */
  function getBoundaries(
    popper,
    reference,
    padding,
    boundariesElement,
    fixedPosition
  ) {
    if ( fixedPosition === void 0 ) { fixedPosition = false; }

    // NOTE: 1 DOM access here

    var boundaries = { top: 0, left: 0 };
    var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));

    // Handle viewport case
    if (boundariesElement === 'viewport' ) {
      boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
    }

    else {
      // Handle other cases based on DOM element used as boundaries
      var boundariesNode;
      if (boundariesElement === 'scrollParent') {
        boundariesNode = getScrollParent(getParentNode(reference));
        if (boundariesNode.nodeName === 'BODY') {
          boundariesNode = popper.ownerDocument.documentElement;
        }
      } else if (boundariesElement === 'window') {
        boundariesNode = popper.ownerDocument.documentElement;
      } else {
        boundariesNode = boundariesElement;
      }

      var offsets = getOffsetRectRelativeToArbitraryNode(
        boundariesNode,
        offsetParent,
        fixedPosition
      );

      // In case of HTML, we need a different computation
      if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
        var ref = getWindowSizes(popper.ownerDocument);
        var height = ref.height;
        var width = ref.width;
        boundaries.top += offsets.top - offsets.marginTop;
        boundaries.bottom = height + offsets.top;
        boundaries.left += offsets.left - offsets.marginLeft;
        boundaries.right = width + offsets.left;
      } else {
        // for all the other DOM elements, this one is good
        boundaries = offsets;
      }
    }

    // Add paddings
    padding = padding || 0;
    var isPaddingNumber = typeof padding === 'number';
    boundaries.left += isPaddingNumber ? padding : padding.left || 0; 
    boundaries.top += isPaddingNumber ? padding : padding.top || 0; 
    boundaries.right -= isPaddingNumber ? padding : padding.right || 0; 
    boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0; 

    return boundaries;
  }

  function getArea(ref) {
    var width = ref.width;
    var height = ref.height;

    return width * height;
  }

  /**
   * Utility used to transform the `auto` placement to the placement with more
   * available space.
   * @method
   * @memberof Popper.Utils
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function computeAutoPlacement(
    placement,
    refRect,
    popper,
    reference,
    boundariesElement,
    padding
  ) {
    if ( padding === void 0 ) { padding = 0; }

    if (placement.indexOf('auto') === -1) {
      return placement;
    }

    var boundaries = getBoundaries(
      popper,
      reference,
      padding,
      boundariesElement
    );

    var rects = {
      top: {
        width: boundaries.width,
        height: refRect.top - boundaries.top,
      },
      right: {
        width: boundaries.right - refRect.right,
        height: boundaries.height,
      },
      bottom: {
        width: boundaries.width,
        height: boundaries.bottom - refRect.bottom,
      },
      left: {
        width: refRect.left - boundaries.left,
        height: boundaries.height,
      },
    };

    var sortedAreas = Object.keys(rects)
      .map(function (key) { return (Object.assign({}, {key: key},
        rects[key],
        {area: getArea(rects[key])})); })
      .sort(function (a, b) { return b.area - a.area; });

    var filteredAreas = sortedAreas.filter(
      function (ref) {
          var width = ref.width;
          var height = ref.height;

          return width >= popper.clientWidth && height >= popper.clientHeight;
    }
    );

    var computedPlacement = filteredAreas.length > 0
      ? filteredAreas[0].key
      : sortedAreas[0].key;

    var variation = placement.split('-')[1];

    return computedPlacement + (variation ? ("-" + variation) : '');
  }

  /**
   * Get offsets to the reference element
   * @method
   * @memberof Popper.Utils
   * @param {Object} state
   * @param {Element} popper - the popper element
   * @param {Element} reference - the reference element (the popper will be relative to this)
   * @param {Element} fixedPosition - is in fixed position mode
   * @returns {Object} An object containing the offsets which will be applied to the popper
   */
  function getReferenceOffsets(state, popper, reference, fixedPosition) {
    if ( fixedPosition === void 0 ) { fixedPosition = null; }

    var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));
    return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
  }

  /**
   * Get the outer sizes of the given element (offset size + margins)
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Object} object containing width and height properties
   */
  function getOuterSizes(element) {
    var window = element.ownerDocument.defaultView;
    var styles = window.getComputedStyle(element);
    var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0);
    var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0);
    var result = {
      width: element.offsetWidth + y,
      height: element.offsetHeight + x,
    };
    return result;
  }

  /**
   * Get the opposite placement of the given one
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement
   * @returns {String} flipped placement
   */
  function getOppositePlacement(placement) {
    var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
    return placement.replace(/left|right|bottom|top/g, function (matched) { return hash[matched]; });
  }

  /**
   * Get offsets to the popper
   * @method
   * @memberof Popper.Utils
   * @param {Object} position - CSS position the Popper will get applied
   * @param {HTMLElement} popper - the popper element
   * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
   * @param {String} placement - one of the valid placement options
   * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
   */
  function getPopperOffsets(popper, referenceOffsets, placement) {
    placement = placement.split('-')[0];

    // Get popper node sizes
    var popperRect = getOuterSizes(popper);

    // Add position, width and height to our offsets object
    var popperOffsets = {
      width: popperRect.width,
      height: popperRect.height,
    };

    // depending by the popper placement we have to compute its offsets slightly differently
    var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
    var mainSide = isHoriz ? 'top' : 'left';
    var secondarySide = isHoriz ? 'left' : 'top';
    var measurement = isHoriz ? 'height' : 'width';
    var secondaryMeasurement = !isHoriz ? 'height' : 'width';

    popperOffsets[mainSide] =
      referenceOffsets[mainSide] +
      referenceOffsets[measurement] / 2 -
      popperRect[measurement] / 2;
    if (placement === secondarySide) {
      popperOffsets[secondarySide] =
        referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
    } else {
      popperOffsets[secondarySide] =
        referenceOffsets[getOppositePlacement(secondarySide)];
    }

    return popperOffsets;
  }

  /**
   * Mimics the `find` method of Array
   * @method
   * @memberof Popper.Utils
   * @argument {Array} arr
   * @argument prop
   * @argument value
   * @returns index or -1
   */
  function find(arr, check) {
    // use native find if supported
    if (Array.prototype.find) {
      return arr.find(check);
    }

    // use `filter` to obtain the same behavior of `find`
    return arr.filter(check)[0];
  }

  /**
   * Return the index of the matching object
   * @method
   * @memberof Popper.Utils
   * @argument {Array} arr
   * @argument prop
   * @argument value
   * @returns index or -1
   */
  function findIndex(arr, prop, value) {
    // use native findIndex if supported
    if (Array.prototype.findIndex) {
      return arr.findIndex(function (cur) { return cur[prop] === value; });
    }

    // use `find` + `indexOf` if `findIndex` isn't supported
    var match = find(arr, function (obj) { return obj[prop] === value; });
    return arr.indexOf(match);
  }

  /**
   * Loop trough the list of modifiers and run them in order,
   * each of them will then edit the data object.
   * @method
   * @memberof Popper.Utils
   * @param {dataObject} data
   * @param {Array} modifiers
   * @param {String} ends - Optional modifier name used as stopper
   * @returns {dataObject}
   */
  function runModifiers(modifiers, data, ends) {
    var modifiersToRun = ends === undefined
      ? modifiers
      : modifiers.slice(0, findIndex(modifiers, 'name', ends));

    modifiersToRun.forEach(function (modifier) {
      if (modifier['function']) { // eslint-disable-line dot-notation
        console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
      }
      var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
      if (modifier.enabled && isFunction(fn)) {
        // Add properties to offsets to make them a complete clientRect object
        // we do this before each modifier to make sure the previous one doesn't
        // mess with these values
        data.offsets.popper = getClientRect(data.offsets.popper);
        data.offsets.reference = getClientRect(data.offsets.reference);

        data = fn(data, modifier);
      }
    });

    return data;
  }

  /**
   * Updates the position of the popper, computing the new offsets and applying
   * the new style.<br />
   * Prefer `scheduleUpdate` over `update` because of performance reasons.
   * @method
   * @memberof Popper
   */
  function update() {
    // if popper is destroyed, don't perform any further update
    if (this.state.isDestroyed) {
      return;
    }

    var data = {
      instance: this,
      styles: {},
      arrowStyles: {},
      attributes: {},
      flipped: false,
      offsets: {},
    };

    // compute reference element offsets
    data.offsets.reference = getReferenceOffsets(
      this.state,
      this.popper,
      this.reference,
      this.options.positionFixed
    );

    // compute auto placement, store placement inside the data object,
    // modifiers will be able to edit `placement` if needed
    // and refer to originalPlacement to know the original value
    data.placement = computeAutoPlacement(
      this.options.placement,
      data.offsets.reference,
      this.popper,
      this.reference,
      this.options.modifiers.flip.boundariesElement,
      this.options.modifiers.flip.padding
    );

    // store the computed placement inside `originalPlacement`
    data.originalPlacement = data.placement;

    data.positionFixed = this.options.positionFixed;

    // compute the popper offsets
    data.offsets.popper = getPopperOffsets(
      this.popper,
      data.offsets.reference,
      data.placement
    );

    data.offsets.popper.position = this.options.positionFixed
      ? 'fixed'
      : 'absolute';

    // run the modifiers
    data = runModifiers(this.modifiers, data);

    // the first `update` will call `onCreate` callback
    // the other ones will call `onUpdate` callback
    if (!this.state.isCreated) {
      this.state.isCreated = true;
      this.options.onCreate(data);
    } else {
      this.options.onUpdate(data);
    }
  }

  /**
   * Helper used to know if the given modifier is enabled.
   * @method
   * @memberof Popper.Utils
   * @returns {Boolean}
   */
  function isModifierEnabled(modifiers, modifierName) {
    return modifiers.some(
      function (ref) {
        var name = ref.name;
        var enabled = ref.enabled;

        return enabled && name === modifierName;
    }
    );
  }

  /**
   * Get the prefixed supported property name
   * @method
   * @memberof Popper.Utils
   * @argument {String} property (camelCase)
   * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
   */
  function getSupportedPropertyName(property) {
    var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
    var upperProp = property.charAt(0).toUpperCase() + property.slice(1);

    for (var i = 0; i < prefixes.length; i++) {
      var prefix = prefixes[i];
      var toCheck = prefix ? ("" + prefix + upperProp) : property;
      if (typeof document.body.style[toCheck] !== 'undefined') {
        return toCheck;
      }
    }
    return null;
  }

  /**
   * Destroys the popper.
   * @method
   * @memberof Popper
   */
  function destroy() {
    this.state.isDestroyed = true;

    // touch DOM only if `applyStyle` modifier is enabled
    if (isModifierEnabled(this.modifiers, 'applyStyle')) {
      this.popper.removeAttribute('x-placement');
      this.popper.style.position = '';
      this.popper.style.top = '';
      this.popper.style.left = '';
      this.popper.style.right = '';
      this.popper.style.bottom = '';
      this.popper.style.willChange = '';
      this.popper.style[getSupportedPropertyName('transform')] = '';
    }

    this.disableEventListeners();

    // remove the popper if user explicitly asked for the deletion on destroy
    // do not use `remove` because IE11 doesn't support it
    if (this.options.removeOnDestroy) {
      this.popper.parentNode.removeChild(this.popper);
    }
    return this;
  }

  /**
   * Get the window associated with the element
   * @argument {Element} element
   * @returns {Window}
   */
  function getWindow(element) {
    var ownerDocument = element.ownerDocument;
    return ownerDocument ? ownerDocument.defaultView : window;
  }

  function attachToScrollParents(scrollParent, event, callback, scrollParents) {
    var isBody = scrollParent.nodeName === 'BODY';
    var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
    target.addEventListener(event, callback, { passive: true });

    if (!isBody) {
      attachToScrollParents(
        getScrollParent(target.parentNode),
        event,
        callback,
        scrollParents
      );
    }
    scrollParents.push(target);
  }

  /**
   * Setup needed event listeners used to update the popper position
   * @method
   * @memberof Popper.Utils
   * @private
   */
  function setupEventListeners(
    reference,
    options,
    state,
    updateBound
  ) {
    // Resize event listener on window
    state.updateBound = updateBound;
    getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });

    // Scroll event listener on scroll parents
    var scrollElement = getScrollParent(reference);
    attachToScrollParents(
      scrollElement,
      'scroll',
      state.updateBound,
      state.scrollParents
    );
    state.scrollElement = scrollElement;
    state.eventsEnabled = true;

    return state;
  }

  /**
   * It will add resize/scroll events and start recalculating
   * position of the popper element when they are triggered.
   * @method
   * @memberof Popper
   */
  function enableEventListeners() {
    if (!this.state.eventsEnabled) {
      this.state = setupEventListeners(
        this.reference,
        this.options,
        this.state,
        this.scheduleUpdate
      );
    }
  }

  /**
   * Remove event listeners used to update the popper position
   * @method
   * @memberof Popper.Utils
   * @private
   */
  function removeEventListeners(reference, state) {
    // Remove resize event listener on window
    getWindow(reference).removeEventListener('resize', state.updateBound);

    // Remove scroll event listener on scroll parents
    state.scrollParents.forEach(function (target) {
      target.removeEventListener('scroll', state.updateBound);
    });

    // Reset state
    state.updateBound = null;
    state.scrollParents = [];
    state.scrollElement = null;
    state.eventsEnabled = false;
    return state;
  }

  /**
   * It will remove resize/scroll events and won't recalculate popper position
   * when they are triggered. It also won't trigger `onUpdate` callback anymore,
   * unless you call `update` method manually.
   * @method
   * @memberof Popper
   */
  function disableEventListeners() {
    if (this.state.eventsEnabled) {
      cancelAnimationFrame(this.scheduleUpdate);
      this.state = removeEventListeners(this.reference, this.state);
    }
  }

  /**
   * Tells if a given input is a number
   * @method
   * @memberof Popper.Utils
   * @param {*} input to check
   * @return {Boolean}
   */
  function isNumeric(n) {
    return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
  }

  /**
   * Set the style to the given popper
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element - Element to apply the style to
   * @argument {Object} styles
   * Object with a list of properties and values which will be applied to the element
   */
  function setStyles(element, styles) {
    Object.keys(styles).forEach(function (prop) {
      var unit = '';
      // add unit if the value is numeric and is one of the following
      if (
        ['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !==
          -1 &&
        isNumeric(styles[prop])
      ) {
        unit = 'px';
      }
      element.style[prop] = styles[prop] + unit;
    });
  }

  /**
   * Set the attributes to the given popper
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element - Element to apply the attributes to
   * @argument {Object} styles
   * Object with a list of properties and values which will be applied to the element
   */
  function setAttributes(element, attributes) {
    Object.keys(attributes).forEach(function(prop) {
      var value = attributes[prop];
      if (value !== false) {
        element.setAttribute(prop, attributes[prop]);
      } else {
        element.removeAttribute(prop);
      }
    });
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} data.styles - List of style properties - values to apply to popper element
   * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The same data object
   */
  function applyStyle(data) {
    // any property present in `data.styles` will be applied to the popper,
    // in this way we can make the 3rd party modifiers add custom styles to it
    // Be aware, modifiers could override the properties defined in the previous
    // lines of this modifier!
    setStyles(data.instance.popper, data.styles);

    // any property present in `data.attributes` will be applied to the popper,
    // they will be set as HTML attributes of the element
    setAttributes(data.instance.popper, data.attributes);

    // if arrowElement is defined and arrowStyles has some properties
    if (data.arrowElement && Object.keys(data.arrowStyles).length) {
      setStyles(data.arrowElement, data.arrowStyles);
    }

    return data;
  }

  /**
   * Set the x-placement attribute before everything else because it could be used
   * to add margins to the popper margins needs to be calculated to get the
   * correct popper offsets.
   * @method
   * @memberof Popper.modifiers
   * @param {HTMLElement} reference - The reference element used to position the popper
   * @param {HTMLElement} popper - The HTML element used as popper
   * @param {Object} options - Popper.js options
   */
  function applyStyleOnLoad(
    reference,
    popper,
    options,
    modifierOptions,
    state
  ) {
    // compute reference element offsets
    var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);

    // compute auto placement, store placement inside the data object,
    // modifiers will be able to edit `placement` if needed
    // and refer to originalPlacement to know the original value
    var placement = computeAutoPlacement(
      options.placement,
      referenceOffsets,
      popper,
      reference,
      options.modifiers.flip.boundariesElement,
      options.modifiers.flip.padding
    );

    popper.setAttribute('x-placement', placement);

    // Apply `position` to popper before anything else because
    // without the position applied we can't guarantee correct computations
    setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });

    return options;
  }

  /**
   * @function
   * @memberof Popper.Utils
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Boolean} shouldRound - If the offsets should be rounded at all
   * @returns {Object} The popper's position offsets rounded
   *
   * The tale of pixel-perfect positioning. It's still not 100% perfect, but as
   * good as it can be within reason.
   * Discussion here: https://github.com/FezVrasta/popper.js/pull/715
   *
   * Low DPI screens cause a popper to be blurry if not using full pixels (Safari
   * as well on High DPI screens).
   *
   * Firefox prefers no rounding for positioning and does not have blurriness on
   * high DPI screens.
   *
   * Only horizontal placement and left/right values need to be considered.
   */
  function getRoundedOffsets(data, shouldRound) {
    var ref = data.offsets;
    var popper = ref.popper;
    var reference = ref.reference;
    var round = Math.round;
    var floor = Math.floor;
    var noRound = function (v) { return v; };
    
    var referenceWidth = round(reference.width);
    var popperWidth = round(popper.width);
    
    var isVertical = ['left', 'right'].indexOf(data.placement) !== -1;
    var isVariation = data.placement.indexOf('-') !== -1;
    var sameWidthParity = referenceWidth % 2 === popperWidth % 2;
    var bothOddWidth = referenceWidth % 2 === 1 && popperWidth % 2 === 1;

    var horizontalToInteger = !shouldRound
      ? noRound
      : isVertical || isVariation || sameWidthParity
      ? round
      : floor;
    var verticalToInteger = !shouldRound ? noRound : round;

    return {
      left: horizontalToInteger(
        bothOddWidth && !isVariation && shouldRound
          ? popper.left - 1
          : popper.left
      ),
      top: verticalToInteger(popper.top),
      bottom: verticalToInteger(popper.bottom),
      right: horizontalToInteger(popper.right),
    };
  }

  var isFirefox = isBrowser && /Firefox/i.test(navigator.userAgent);

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function computeStyle(data, options) {
    var x = options.x;
    var y = options.y;
    var ref = data.offsets;
    var popper = ref.popper;

    // Remove this legacy support in Popper.js v2
    var legacyGpuAccelerationOption = find(
      data.instance.modifiers,
      function (modifier) { return modifier.name === 'applyStyle'; }
    ).gpuAcceleration;
    if (legacyGpuAccelerationOption !== undefined) {
      console.warn(
        'WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!'
      );
    }
    var gpuAcceleration =
      legacyGpuAccelerationOption !== undefined
        ? legacyGpuAccelerationOption
        : options.gpuAcceleration;

    var offsetParent = getOffsetParent(data.instance.popper);
    var offsetParentRect = getBoundingClientRect(offsetParent);

    // Styles
    var styles = {
      position: popper.position,
    };

    var offsets = getRoundedOffsets(
      data,
      window.devicePixelRatio < 2 || !isFirefox
    );

    var sideA = x === 'bottom' ? 'top' : 'bottom';
    var sideB = y === 'right' ? 'left' : 'right';

    // if gpuAcceleration is set to `true` and transform is supported,
    //  we use `translate3d` to apply the position to the popper we
    // automatically use the supported prefixed version if needed
    var prefixedProperty = getSupportedPropertyName('transform');

    // now, let's make a step back and look at this code closely (wtf?)
    // If the content of the popper grows once it's been positioned, it
    // may happen that the popper gets misplaced because of the new content
    // overflowing its reference element
    // To avoid this problem, we provide two options (x and y), which allow
    // the consumer to define the offset origin.
    // If we position a popper on top of a reference element, we can set
    // `x` to `top` to make the popper grow towards its top instead of
    // its bottom.
    var left, top;
    if (sideA === 'bottom') {
      // when offsetParent is <html> the positioning is relative to the bottom of the screen (excluding the scrollbar)
      // and not the bottom of the html element
      if (offsetParent.nodeName === 'HTML') {
        top = -offsetParent.clientHeight + offsets.bottom;
      } else {
        top = -offsetParentRect.height + offsets.bottom;
      }
    } else {
      top = offsets.top;
    }
    if (sideB === 'right') {
      if (offsetParent.nodeName === 'HTML') {
        left = -offsetParent.clientWidth + offsets.right;
      } else {
        left = -offsetParentRect.width + offsets.right;
      }
    } else {
      left = offsets.left;
    }
    if (gpuAcceleration && prefixedProperty) {
      styles[prefixedProperty] = "translate3d(" + left + "px, " + top + "px, 0)";
      styles[sideA] = 0;
      styles[sideB] = 0;
      styles.willChange = 'transform';
    } else {
      // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
      var invertTop = sideA === 'bottom' ? -1 : 1;
      var invertLeft = sideB === 'right' ? -1 : 1;
      styles[sideA] = top * invertTop;
      styles[sideB] = left * invertLeft;
      styles.willChange = sideA + ", " + sideB;
    }

    // Attributes
    var attributes = {
      'x-placement': data.placement,
    };

    // Update `data` attributes, styles and arrowStyles
    data.attributes = Object.assign({}, attributes, data.attributes);
    data.styles = Object.assign({}, styles, data.styles);
    data.arrowStyles = Object.assign({}, data.offsets.arrow, data.arrowStyles);

    return data;
  }

  /**
   * Helper used to know if the given modifier depends from another one.<br />
   * It checks if the needed modifier is listed and enabled.
   * @method
   * @memberof Popper.Utils
   * @param {Array} modifiers - list of modifiers
   * @param {String} requestingName - name of requesting modifier
   * @param {String} requestedName - name of requested modifier
   * @returns {Boolean}
   */
  function isModifierRequired(
    modifiers,
    requestingName,
    requestedName
  ) {
    var requesting = find(modifiers, function (ref) {
      var name = ref.name;

      return name === requestingName;
    });

    var isRequired =
      !!requesting &&
      modifiers.some(function (modifier) {
        return (
          modifier.name === requestedName &&
          modifier.enabled &&
          modifier.order < requesting.order
        );
      });

    if (!isRequired) {
      var requesting$1 = "`" + requestingName + "`";
      var requested = "`" + requestedName + "`";
      console.warn(
        (requested + " modifier is required by " + requesting$1 + " modifier in order to work, be sure to include it before " + requesting$1 + "!")
      );
    }
    return isRequired;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function arrow(data, options) {
    var obj;

    // arrow depends on keepTogether in order to work
    if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
      return data;
    }

    var arrowElement = options.element;

    // if arrowElement is a string, suppose it's a CSS selector
    if (typeof arrowElement === 'string') {
      arrowElement = data.instance.popper.querySelector(arrowElement);

      // if arrowElement is not found, don't run the modifier
      if (!arrowElement) {
        return data;
      }
    } else {
      // if the arrowElement isn't a query selector we must check that the
      // provided DOM node is child of its popper node
      if (!data.instance.popper.contains(arrowElement)) {
        console.warn(
          'WARNING: `arrow.element` must be child of its popper element!'
        );
        return data;
      }
    }

    var placement = data.placement.split('-')[0];
    var ref = data.offsets;
    var popper = ref.popper;
    var reference = ref.reference;
    var isVertical = ['left', 'right'].indexOf(placement) !== -1;

    var len = isVertical ? 'height' : 'width';
    var sideCapitalized = isVertical ? 'Top' : 'Left';
    var side = sideCapitalized.toLowerCase();
    var altSide = isVertical ? 'left' : 'top';
    var opSide = isVertical ? 'bottom' : 'right';
    var arrowElementSize = getOuterSizes(arrowElement)[len];

    //
    // extends keepTogether behavior making sure the popper and its
    // reference have enough pixels in conjunction
    //

    // top/left side
    if (reference[opSide] - arrowElementSize < popper[side]) {
      data.offsets.popper[side] -=
        popper[side] - (reference[opSide] - arrowElementSize);
    }
    // bottom/right side
    if (reference[side] + arrowElementSize > popper[opSide]) {
      data.offsets.popper[side] +=
        reference[side] + arrowElementSize - popper[opSide];
    }
    data.offsets.popper = getClientRect(data.offsets.popper);

    // compute center of the popper
    var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;

    // Compute the sideValue using the updated popper offsets
    // take popper margin in account because we don't have this info available
    var css = getStyleComputedProperty(data.instance.popper);
    var popperMarginSide = parseFloat(css[("margin" + sideCapitalized)], 10);
    var popperBorderSide = parseFloat(css[("border" + sideCapitalized + "Width")], 10);
    var sideValue =
      center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;

    // prevent arrowElement from being placed not contiguously to its popper
    sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);

    data.arrowElement = arrowElement;
    data.offsets.arrow = ( obj = {}, obj[side] = Math.round(sideValue), obj[altSide] = '', obj );

    return data;
  }

  /**
   * Get the opposite placement variation of the given one
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement variation
   * @returns {String} flipped placement variation
   */
  function getOppositeVariation(variation) {
    if (variation === 'end') {
      return 'start';
    } else if (variation === 'start') {
      return 'end';
    }
    return variation;
  }

  /**
   * List of accepted placements to use as values of the `placement` option.<br />
   * Valid placements are:
   * - `auto`
   * - `top`
   * - `right`
   * - `bottom`
   * - `left`
   *
   * Each placement can have a variation from this list:
   * - `-start`
   * - `-end`
   *
   * Variations are interpreted easily if you think of them as the left to right
   * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
   * is right.<br />
   * Vertically (`left` and `right`), `start` is top and `end` is bottom.
   *
   * Some valid examples are:
   * - `top-end` (on top of reference, right aligned)
   * - `right-start` (on right of reference, top aligned)
   * - `bottom` (on bottom, centered)
   * - `auto-end` (on the side with more space available, alignment depends by placement)
   *
   * @static
   * @type {Array}
   * @enum {String}
   * @readonly
   * @method placements
   * @memberof Popper
   */
  var placements = [
    'auto-start',
    'auto',
    'auto-end',
    'top-start',
    'top',
    'top-end',
    'right-start',
    'right',
    'right-end',
    'bottom-end',
    'bottom',
    'bottom-start',
    'left-end',
    'left',
    'left-start' ];

  // Get rid of `auto` `auto-start` and `auto-end`
  var validPlacements = placements.slice(3);

  /**
   * Given an initial placement, returns all the subsequent placements
   * clockwise (or counter-clockwise).
   *
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement - A valid placement (it accepts variations)
   * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
   * @returns {Array} placements including their variations
   */
  function clockwise(placement, counter) {
    if ( counter === void 0 ) { counter = false; }

    var index = validPlacements.indexOf(placement);
    var arr = validPlacements
      .slice(index + 1)
      .concat(validPlacements.slice(0, index));
    return counter ? arr.reverse() : arr;
  }

  var BEHAVIORS = {
    FLIP: 'flip',
    CLOCKWISE: 'clockwise',
    COUNTERCLOCKWISE: 'counterclockwise',
  };

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function flip(data, options) {
    // if `inner` modifier is enabled, we can't use the `flip` modifier
    if (isModifierEnabled(data.instance.modifiers, 'inner')) {
      return data;
    }

    if (data.flipped && data.placement === data.originalPlacement) {
      // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
      return data;
    }

    var boundaries = getBoundaries(
      data.instance.popper,
      data.instance.reference,
      options.padding,
      options.boundariesElement,
      data.positionFixed
    );

    var placement = data.placement.split('-')[0];
    var placementOpposite = getOppositePlacement(placement);
    var variation = data.placement.split('-')[1] || '';

    var flipOrder = [];

    switch (options.behavior) {
      case BEHAVIORS.FLIP:
        flipOrder = [placement, placementOpposite];
        break;
      case BEHAVIORS.CLOCKWISE:
        flipOrder = clockwise(placement);
        break;
      case BEHAVIORS.COUNTERCLOCKWISE:
        flipOrder = clockwise(placement, true);
        break;
      default:
        flipOrder = options.behavior;
    }

    flipOrder.forEach(function (step, index) {
      if (placement !== step || flipOrder.length === index + 1) {
        return data;
      }

      placement = data.placement.split('-')[0];
      placementOpposite = getOppositePlacement(placement);

      var popperOffsets = data.offsets.popper;
      var refOffsets = data.offsets.reference;

      // using floor because the reference offsets may contain decimals we are not going to consider here
      var floor = Math.floor;
      var overlapsRef =
        (placement === 'left' &&
          floor(popperOffsets.right) > floor(refOffsets.left)) ||
        (placement === 'right' &&
          floor(popperOffsets.left) < floor(refOffsets.right)) ||
        (placement === 'top' &&
          floor(popperOffsets.bottom) > floor(refOffsets.top)) ||
        (placement === 'bottom' &&
          floor(popperOffsets.top) < floor(refOffsets.bottom));

      var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
      var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
      var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
      var overflowsBottom =
        floor(popperOffsets.bottom) > floor(boundaries.bottom);

      var overflowsBoundaries =
        (placement === 'left' && overflowsLeft) ||
        (placement === 'right' && overflowsRight) ||
        (placement === 'top' && overflowsTop) ||
        (placement === 'bottom' && overflowsBottom);

      // flip the variation if required
      var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;

      // flips variation if reference element overflows boundaries
      var flippedVariationByRef =
        !!options.flipVariations &&
        ((isVertical && variation === 'start' && overflowsLeft) ||
          (isVertical && variation === 'end' && overflowsRight) ||
          (!isVertical && variation === 'start' && overflowsTop) ||
          (!isVertical && variation === 'end' && overflowsBottom));

      // flips variation if popper content overflows boundaries
      var flippedVariationByContent =
        !!options.flipVariationsByContent &&
        ((isVertical && variation === 'start' && overflowsRight) ||
          (isVertical && variation === 'end' && overflowsLeft) ||
          (!isVertical && variation === 'start' && overflowsBottom) ||
          (!isVertical && variation === 'end' && overflowsTop));

      var flippedVariation = flippedVariationByRef || flippedVariationByContent;

      if (overlapsRef || overflowsBoundaries || flippedVariation) {
        // this boolean to detect any flip loop
        data.flipped = true;

        if (overlapsRef || overflowsBoundaries) {
          placement = flipOrder[index + 1];
        }

        if (flippedVariation) {
          variation = getOppositeVariation(variation);
        }

        data.placement = placement + (variation ? '-' + variation : '');

        // this object contains `position`, we want to preserve it along with
        // any additional property we may add in the future
        data.offsets.popper = Object.assign({}, data.offsets.popper,
          getPopperOffsets(
            data.instance.popper,
            data.offsets.reference,
            data.placement
          ));

        data = runModifiers(data.instance.modifiers, data, 'flip');
      }
    });
    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function keepTogether(data) {
    var ref = data.offsets;
    var popper = ref.popper;
    var reference = ref.reference;
    var placement = data.placement.split('-')[0];
    var floor = Math.floor;
    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
    var side = isVertical ? 'right' : 'bottom';
    var opSide = isVertical ? 'left' : 'top';
    var measurement = isVertical ? 'width' : 'height';

    if (popper[side] < floor(reference[opSide])) {
      data.offsets.popper[opSide] =
        floor(reference[opSide]) - popper[measurement];
    }
    if (popper[opSide] > floor(reference[side])) {
      data.offsets.popper[opSide] = floor(reference[side]);
    }

    return data;
  }

  /**
   * Converts a string containing value + unit into a px value number
   * @function
   * @memberof {modifiers~offset}
   * @private
   * @argument {String} str - Value + unit string
   * @argument {String} measurement - `height` or `width`
   * @argument {Object} popperOffsets
   * @argument {Object} referenceOffsets
   * @returns {Number|String}
   * Value in pixels, or original string if no values were extracted
   */
  function toValue(str, measurement, popperOffsets, referenceOffsets) {
    // separate value from unit
    var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
    var value = +split[1];
    var unit = split[2];

    // If it's not a number it's an operator, I guess
    if (!value) {
      return str;
    }

    if (unit.indexOf('%') === 0) {
      var element;
      switch (unit) {
        case '%p':
          element = popperOffsets;
          break;
        case '%':
        case '%r':
        default:
          element = referenceOffsets;
      }

      var rect = getClientRect(element);
      return rect[measurement] / 100 * value;
    } else if (unit === 'vh' || unit === 'vw') {
      // if is a vh or vw, we calculate the size based on the viewport
      var size;
      if (unit === 'vh') {
        size = Math.max(
          document.documentElement.clientHeight,
          window.innerHeight || 0
        );
      } else {
        size = Math.max(
          document.documentElement.clientWidth,
          window.innerWidth || 0
        );
      }
      return size / 100 * value;
    } else {
      // if is an explicit pixel unit, we get rid of the unit and keep the value
      // if is an implicit unit, it's px, and we return just the value
      return value;
    }
  }

  /**
   * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
   * @function
   * @memberof {modifiers~offset}
   * @private
   * @argument {String} offset
   * @argument {Object} popperOffsets
   * @argument {Object} referenceOffsets
   * @argument {String} basePlacement
   * @returns {Array} a two cells array with x and y offsets in numbers
   */
  function parseOffset(
    offset,
    popperOffsets,
    referenceOffsets,
    basePlacement
  ) {
    var offsets = [0, 0];

    // Use height if placement is left or right and index is 0 otherwise use width
    // in this way the first offset will use an axis and the second one
    // will use the other one
    var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;

    // Split the offset string to obtain a list of values and operands
    // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
    var fragments = offset.split(/(\+|\-)/).map(function (frag) { return frag.trim(); });

    // Detect if the offset string contains a pair of values or a single one
    // they could be separated by comma or space
    var divider = fragments.indexOf(
      find(fragments, function (frag) { return frag.search(/,|\s/) !== -1; })
    );

    if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
      console.warn(
        'Offsets separated by white space(s) are deprecated, use a comma (,) instead.'
      );
    }

    // If divider is found, we divide the list of values and operands to divide
    // them by ofset X and Y.
    var splitRegex = /\s*,\s*|\s+/;
    var ops = divider !== -1
      ? [
          fragments
            .slice(0, divider)
            .concat([fragments[divider].split(splitRegex)[0]]),
          [fragments[divider].split(splitRegex)[1]].concat(
            fragments.slice(divider + 1)
          ) ]
      : [fragments];

    // Convert the values with units to absolute pixels to allow our computations
    ops = ops.map(function (op, index) {
      // Most of the units rely on the orientation of the popper
      var measurement = (index === 1 ? !useHeight : useHeight)
        ? 'height'
        : 'width';
      var mergeWithPrevious = false;
      return (
        op
          // This aggregates any `+` or `-` sign that aren't considered operators
          // e.g.: 10 + +5 => [10, +, +5]
          .reduce(function (a, b) {
            if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
              a[a.length - 1] = b;
              mergeWithPrevious = true;
              return a;
            } else if (mergeWithPrevious) {
              a[a.length - 1] += b;
              mergeWithPrevious = false;
              return a;
            } else {
              return a.concat(b);
            }
          }, [])
          // Here we convert the string values into number values (in px)
          .map(function (str) { return toValue(str, measurement, popperOffsets, referenceOffsets); })
      );
    });

    // Loop trough the offsets arrays and execute the operations
    ops.forEach(function (op, index) {
      op.forEach(function (frag, index2) {
        if (isNumeric(frag)) {
          offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
        }
      });
    });
    return offsets;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @argument {Number|String} options.offset=0
   * The offset value as described in the modifier description
   * @returns {Object} The data object, properly modified
   */
  function offset(data, ref) {
    var offset = ref.offset;

    var placement = data.placement;
    var data_offsets = data.offsets;
    var popper = data_offsets.popper;
    var reference = data_offsets.reference;
    var basePlacement = placement.split('-')[0];

    var offsets;
    if (isNumeric(+offset)) {
      offsets = [+offset, 0];
    } else {
      offsets = parseOffset(offset, popper, reference, basePlacement);
    }

    if (basePlacement === 'left') {
      popper.top += offsets[0];
      popper.left -= offsets[1];
    } else if (basePlacement === 'right') {
      popper.top += offsets[0];
      popper.left += offsets[1];
    } else if (basePlacement === 'top') {
      popper.left += offsets[0];
      popper.top -= offsets[1];
    } else if (basePlacement === 'bottom') {
      popper.left += offsets[0];
      popper.top += offsets[1];
    }

    data.popper = popper;
    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function preventOverflow(data, options) {
    var boundariesElement =
      options.boundariesElement || getOffsetParent(data.instance.popper);

    // If offsetParent is the reference element, we really want to
    // go one step up and use the next offsetParent as reference to
    // avoid to make this modifier completely useless and look like broken
    if (data.instance.reference === boundariesElement) {
      boundariesElement = getOffsetParent(boundariesElement);
    }

    // NOTE: DOM access here
    // resets the popper's position so that the document size can be calculated excluding
    // the size of the popper element itself
    var transformProp = getSupportedPropertyName('transform');
    var popperStyles = data.instance.popper.style; // assignment to help minification
    var top = popperStyles.top;
    var left = popperStyles.left;
    var transform = popperStyles[transformProp];
    popperStyles.top = '';
    popperStyles.left = '';
    popperStyles[transformProp] = '';

    var boundaries = getBoundaries(
      data.instance.popper,
      data.instance.reference,
      options.padding,
      boundariesElement,
      data.positionFixed
    );

    // NOTE: DOM access here
    // restores the original style properties after the offsets have been computed
    popperStyles.top = top;
    popperStyles.left = left;
    popperStyles[transformProp] = transform;

    options.boundaries = boundaries;

    var order = options.priority;
    var popper = data.offsets.popper;

    var check = {
      primary: function primary(placement) {
        var obj;

        var value = popper[placement];
        if (
          popper[placement] < boundaries[placement] &&
          !options.escapeWithReference
        ) {
          value = Math.max(popper[placement], boundaries[placement]);
        }
        return ( obj = {}, obj[placement] = value, obj );
      },
      secondary: function secondary(placement) {
        var obj;

        var mainSide = placement === 'right' ? 'left' : 'top';
        var value = popper[mainSide];
        if (
          popper[placement] > boundaries[placement] &&
          !options.escapeWithReference
        ) {
          value = Math.min(
            popper[mainSide],
            boundaries[placement] -
              (placement === 'right' ? popper.width : popper.height)
          );
        }
        return ( obj = {}, obj[mainSide] = value, obj );
      },
    };

    order.forEach(function (placement) {
      var side =
        ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
      popper = Object.assign({}, popper, check[side](placement));
    });

    data.offsets.popper = popper;

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function shift(data) {
    var obj, obj$1;

    var placement = data.placement;
    var basePlacement = placement.split('-')[0];
    var shiftvariation = placement.split('-')[1];

    // if shift shiftvariation is specified, run the modifier
    if (shiftvariation) {
      var ref = data.offsets;
      var reference = ref.reference;
      var popper = ref.popper;
      var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
      var side = isVertical ? 'left' : 'top';
      var measurement = isVertical ? 'width' : 'height';

      var shiftOffsets = {
        start: ( obj = {}, obj[side] = reference[side], obj ),
        end: ( obj$1 = {}, obj$1[side] = reference[side] + reference[measurement] - popper[measurement], obj$1 ),
      };

      data.offsets.popper = Object.assign({}, popper, shiftOffsets[shiftvariation]);
    }

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function hide(data) {
    if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
      return data;
    }

    var refRect = data.offsets.reference;
    var bound = find(
      data.instance.modifiers,
      function (modifier) { return modifier.name === 'preventOverflow'; }
    ).boundaries;

    if (
      refRect.bottom < bound.top ||
      refRect.left > bound.right ||
      refRect.top > bound.bottom ||
      refRect.right < bound.left
    ) {
      // Avoid unnecessary DOM access if visibility hasn't changed
      if (data.hide === true) {
        return data;
      }

      data.hide = true;
      data.attributes['x-out-of-boundaries'] = '';
    } else {
      // Avoid unnecessary DOM access if visibility hasn't changed
      if (data.hide === false) {
        return data;
      }

      data.hide = false;
      data.attributes['x-out-of-boundaries'] = false;
    }

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function inner(data) {
    var placement = data.placement;
    var basePlacement = placement.split('-')[0];
    var ref = data.offsets;
    var popper = ref.popper;
    var reference = ref.reference;
    var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;

    var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;

    popper[isHoriz ? 'left' : 'top'] =
      reference[basePlacement] -
      (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);

    data.placement = getOppositePlacement(placement);
    data.offsets.popper = getClientRect(popper);

    return data;
  }

  /**
   * Modifier function, each modifier can have a function of this type assigned
   * to its `fn` property.<br />
   * These functions will be called on each update, this means that you must
   * make sure they are performant enough to avoid performance bottlenecks.
   *
   * @function ModifierFn
   * @argument {dataObject} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {dataObject} The data object, properly modified
   */

  /**
   * Modifiers are plugins used to alter the behavior of your poppers.<br />
   * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
   * needed by the library.
   *
   * Usually you don't want to override the `order`, `fn` and `onLoad` props.
   * All the other properties are configurations that could be tweaked.
   * @namespace modifiers
   */
  var modifiers = {
    /**
     * Modifier used to shift the popper on the start or end of its reference
     * element.<br />
     * It will read the variation of the `placement` property.<br />
     * It can be one either `-end` or `-start`.
     * @memberof modifiers
     * @inner
     */
    shift: {
      /** @prop {number} order=100 - Index used to define the order of execution */
      order: 100,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: shift,
    },

    /**
     * The `offset` modifier can shift your popper on both its axis.
     *
     * It accepts the following units:
     * - `px` or unit-less, interpreted as pixels
     * - `%` or `%r`, percentage relative to the length of the reference element
     * - `%p`, percentage relative to the length of the popper element
     * - `vw`, CSS viewport width unit
     * - `vh`, CSS viewport height unit
     *
     * For length is intended the main axis relative to the placement of the popper.<br />
     * This means that if the placement is `top` or `bottom`, the length will be the
     * `width`. In case of `left` or `right`, it will be the `height`.
     *
     * You can provide a single value (as `Number` or `String`), or a pair of values
     * as `String` divided by a comma or one (or more) white spaces.<br />
     * The latter is a deprecated method because it leads to confusion and will be
     * removed in v2.<br />
     * Additionally, it accepts additions and subtractions between different units.
     * Note that multiplications and divisions aren't supported.
     *
     * Valid examples are:
     * ```
     * 10
     * '10%'
     * '10, 10'
     * '10%, 10'
     * '10 + 10%'
     * '10 - 5vh + 3%'
     * '-10px + 5vh, 5px - 6%'
     * ```
     * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
     * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
     * > You can read more on this at this [issue](https://github.com/FezVrasta/popper.js/issues/373).
     *
     * @memberof modifiers
     * @inner
     */
    offset: {
      /** @prop {number} order=200 - Index used to define the order of execution */
      order: 200,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: offset,
      /** @prop {Number|String} offset=0
       * The offset value as described in the modifier description
       */
      offset: 0,
    },

    /**
     * Modifier used to prevent the popper from being positioned outside the boundary.
     *
     * A scenario exists where the reference itself is not within the boundaries.<br />
     * We can say it has "escaped the boundaries" — or just "escaped".<br />
     * In this case we need to decide whether the popper should either:
     *
     * - detach from the reference and remain "trapped" in the boundaries, or
     * - if it should ignore the boundary and "escape with its reference"
     *
     * When `escapeWithReference` is set to`true` and reference is completely
     * outside its boundaries, the popper will overflow (or completely leave)
     * the boundaries in order to remain attached to the edge of the reference.
     *
     * @memberof modifiers
     * @inner
     */
    preventOverflow: {
      /** @prop {number} order=300 - Index used to define the order of execution */
      order: 300,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: preventOverflow,
      /**
       * @prop {Array} [priority=['left','right','top','bottom']]
       * Popper will try to prevent overflow following these priorities by default,
       * then, it could overflow on the left and on top of the `boundariesElement`
       */
      priority: ['left', 'right', 'top', 'bottom'],
      /**
       * @prop {number} padding=5
       * Amount of pixel used to define a minimum distance between the boundaries
       * and the popper. This makes sure the popper always has a little padding
       * between the edges of its container
       */
      padding: 5,
      /**
       * @prop {String|HTMLElement} boundariesElement='scrollParent'
       * Boundaries used by the modifier. Can be `scrollParent`, `window`,
       * `viewport` or any DOM element.
       */
      boundariesElement: 'scrollParent',
    },

    /**
     * Modifier used to make sure the reference and its popper stay near each other
     * without leaving any gap between the two. Especially useful when the arrow is
     * enabled and you want to ensure that it points to its reference element.
     * It cares only about the first axis. You can still have poppers with margin
     * between the popper and its reference element.
     * @memberof modifiers
     * @inner
     */
    keepTogether: {
      /** @prop {number} order=400 - Index used to define the order of execution */
      order: 400,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: keepTogether,
    },

    /**
     * This modifier is used to move the `arrowElement` of the popper to make
     * sure it is positioned between the reference element and its popper element.
     * It will read the outer size of the `arrowElement` node to detect how many
     * pixels of conjunction are needed.
     *
     * It has no effect if no `arrowElement` is provided.
     * @memberof modifiers
     * @inner
     */
    arrow: {
      /** @prop {number} order=500 - Index used to define the order of execution */
      order: 500,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: arrow,
      /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
      element: '[x-arrow]',
    },

    /**
     * Modifier used to flip the popper's placement when it starts to overlap its
     * reference element.
     *
     * Requires the `preventOverflow` modifier before it in order to work.
     *
     * **NOTE:** this modifier will interrupt the current update cycle and will
     * restart it if it detects the need to flip the placement.
     * @memberof modifiers
     * @inner
     */
    flip: {
      /** @prop {number} order=600 - Index used to define the order of execution */
      order: 600,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: flip,
      /**
       * @prop {String|Array} behavior='flip'
       * The behavior used to change the popper's placement. It can be one of
       * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
       * placements (with optional variations)
       */
      behavior: 'flip',
      /**
       * @prop {number} padding=5
       * The popper will flip if it hits the edges of the `boundariesElement`
       */
      padding: 5,
      /**
       * @prop {String|HTMLElement} boundariesElement='viewport'
       * The element which will define the boundaries of the popper position.
       * The popper will never be placed outside of the defined boundaries
       * (except if `keepTogether` is enabled)
       */
      boundariesElement: 'viewport',
      /**
       * @prop {Boolean} flipVariations=false
       * The popper will switch placement variation between `-start` and `-end` when
       * the reference element overlaps its boundaries.
       *
       * The original placement should have a set variation.
       */
      flipVariations: false,
      /**
       * @prop {Boolean} flipVariationsByContent=false
       * The popper will switch placement variation between `-start` and `-end` when
       * the popper element overlaps its reference boundaries.
       *
       * The original placement should have a set variation.
       */
      flipVariationsByContent: false,
    },

    /**
     * Modifier used to make the popper flow toward the inner of the reference element.
     * By default, when this modifier is disabled, the popper will be placed outside
     * the reference element.
     * @memberof modifiers
     * @inner
     */
    inner: {
      /** @prop {number} order=700 - Index used to define the order of execution */
      order: 700,
      /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
      enabled: false,
      /** @prop {ModifierFn} */
      fn: inner,
    },

    /**
     * Modifier used to hide the popper when its reference element is outside of the
     * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
     * be used to hide with a CSS selector the popper when its reference is
     * out of boundaries.
     *
     * Requires the `preventOverflow` modifier before it in order to work.
     * @memberof modifiers
     * @inner
     */
    hide: {
      /** @prop {number} order=800 - Index used to define the order of execution */
      order: 800,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: hide,
    },

    /**
     * Computes the style that will be applied to the popper element to gets
     * properly positioned.
     *
     * Note that this modifier will not touch the DOM, it just prepares the styles
     * so that `applyStyle` modifier can apply it. This separation is useful
     * in case you need to replace `applyStyle` with a custom implementation.
     *
     * This modifier has `850` as `order` value to maintain backward compatibility
     * with previous versions of Popper.js. Expect the modifiers ordering method
     * to change in future major versions of the library.
     *
     * @memberof modifiers
     * @inner
     */
    computeStyle: {
      /** @prop {number} order=850 - Index used to define the order of execution */
      order: 850,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: computeStyle,
      /**
       * @prop {Boolean} gpuAcceleration=true
       * If true, it uses the CSS 3D transformation to position the popper.
       * Otherwise, it will use the `top` and `left` properties
       */
      gpuAcceleration: true,
      /**
       * @prop {string} [x='bottom']
       * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
       * Change this if your popper should grow in a direction different from `bottom`
       */
      x: 'bottom',
      /**
       * @prop {string} [x='left']
       * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
       * Change this if your popper should grow in a direction different from `right`
       */
      y: 'right',
    },

    /**
     * Applies the computed styles to the popper element.
     *
     * All the DOM manipulations are limited to this modifier. This is useful in case
     * you want to integrate Popper.js inside a framework or view library and you
     * want to delegate all the DOM manipulations to it.
     *
     * Note that if you disable this modifier, you must make sure the popper element
     * has its position set to `absolute` before Popper.js can do its work!
     *
     * Just disable this modifier and define your own to achieve the desired effect.
     *
     * @memberof modifiers
     * @inner
     */
    applyStyle: {
      /** @prop {number} order=900 - Index used to define the order of execution */
      order: 900,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: applyStyle,
      /** @prop {Function} */
      onLoad: applyStyleOnLoad,
      /**
       * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
       * @prop {Boolean} gpuAcceleration=true
       * If true, it uses the CSS 3D transformation to position the popper.
       * Otherwise, it will use the `top` and `left` properties
       */
      gpuAcceleration: undefined,
    },
  };

  /**
   * The `dataObject` is an object containing all the information used by Popper.js.
   * This object is passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
   * @name dataObject
   * @property {Object} data.instance The Popper.js instance
   * @property {String} data.placement Placement applied to popper
   * @property {String} data.originalPlacement Placement originally defined on init
   * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
   * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper
   * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
   * @property {Object} data.styles Any CSS property defined here will be applied to the popper. It expects the JavaScript nomenclature (eg. `marginBottom`)
   * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow. It expects the JavaScript nomenclature (eg. `marginBottom`)
   * @property {Object} data.boundaries Offsets of the popper boundaries
   * @property {Object} data.offsets The measurements of popper, reference and arrow elements
   * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
   * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
   * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
   */

  /**
   * Default options provided to Popper.js constructor.<br />
   * These can be overridden using the `options` argument of Popper.js.<br />
   * To override an option, simply pass an object with the same
   * structure of the `options` object, as the 3rd argument. For example:
   * ```
   * new Popper(ref, pop, {
   *   modifiers: {
   *     preventOverflow: { enabled: false }
   *   }
   * })
   * ```
   * @type {Object}
   * @static
   * @memberof Popper
   */
  var Defaults = {
    /**
     * Popper's placement.
     * @prop {Popper.placements} placement='bottom'
     */
    placement: 'bottom',

    /**
     * Set this to true if you want popper to position it self in 'fixed' mode
     * @prop {Boolean} positionFixed=false
     */
    positionFixed: false,

    /**
     * Whether events (resize, scroll) are initially enabled.
     * @prop {Boolean} eventsEnabled=true
     */
    eventsEnabled: true,

    /**
     * Set to true if you want to automatically remove the popper when
     * you call the `destroy` method.
     * @prop {Boolean} removeOnDestroy=false
     */
    removeOnDestroy: false,

    /**
     * Callback called when the popper is created.<br />
     * By default, it is set to no-op.<br />
     * Access Popper.js instance with `data.instance`.
     * @prop {onCreate}
     */
    onCreate: function () {},

    /**
     * Callback called when the popper is updated. This callback is not called
     * on the initialization/creation of the popper, but only on subsequent
     * updates.<br />
     * By default, it is set to no-op.<br />
     * Access Popper.js instance with `data.instance`.
     * @prop {onUpdate}
     */
    onUpdate: function () {},

    /**
     * List of modifiers used to modify the offsets before they are applied to the popper.
     * They provide most of the functionalities of Popper.js.
     * @prop {modifiers}
     */
    modifiers: modifiers,
  };

  /**
   * @callback onCreate
   * @param {dataObject} data
   */

  /**
   * @callback onUpdate
   * @param {dataObject} data
   */

  // Utils

  var Popper = function Popper(reference, popper, options) {
    var this$1 = this;
    if ( options === void 0 ) { options = {}; }

    // make update() debounced, so that it only runs at most once-per-tick
    this.update = debounce(this.update.bind(this));

  		this.scheduleUpdate = this.scheduleUpdate.bind(this);

    // with {} we create a new object with the options inside it
    this.options = Object.assign({}, Popper.Defaults, options);

    // init state
    this.state = {
      isDestroyed: false,
      isCreated: false,
      scrollParents: [],
    };

    // get reference and popper elements (allow jQuery wrappers)
    this.reference = reference && reference.jquery ? reference[0] : reference;
    this.popper = popper && popper.jquery ? popper[0] : popper;

    // Deep merge modifiers options
    this.options.modifiers = {};
    Object.keys(Object.assign({}, Popper.Defaults.modifiers,
      options.modifiers)).forEach(function (name) {
      this$1.options.modifiers[name] = Object.assign({}, (Popper.Defaults.modifiers[name] || {}),
        // If there are custom options, override and merge with default ones
        (options.modifiers ? options.modifiers[name] : {}));
    });

    // Refactoring modifiers' list (Object => Array)
    this.modifiers = Object.keys(this.options.modifiers)
      .map(function (name) { return (Object.assign({}, {name: name},
        this$1.options.modifiers[name])); })
      // sort the modifiers by order
      .sort(function (a, b) { return a.order - b.order; });

    // modifiers have the ability to execute arbitrary code when Popper.js get inited
    // such code is executed in the same order of its modifier
    // they could add new properties to their options configuration
    // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
    this.modifiers.forEach(function (modifierOptions) {
      if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
        modifierOptions.onLoad(
          this$1.reference,
          this$1.popper,
          this$1.options,
          modifierOptions,
          this$1.state
        );
      }
    });

    // fire the first update to position the popper in the right place
    this.update();

    var eventsEnabled = this.options.eventsEnabled;
    if (eventsEnabled) {
      // setup event listeners, they will take care of update the position in specific situations
      this.enableEventListeners();
    }

    this.state.eventsEnabled = eventsEnabled;
  };

  // We can't use class properties because they don't get listed in the
  // class prototype and break stuff like Sinon stubs
  Popper.prototype.update = function update$1 () {
    return update.call(this);
  };
  Popper.prototype.destroy = function destroy$1 () {
    return destroy.call(this);
  };
  Popper.prototype.enableEventListeners = function enableEventListeners$1 () {
    return enableEventListeners.call(this);
  };
  Popper.prototype.disableEventListeners = function disableEventListeners$1 () {
    return disableEventListeners.call(this);
  };
  /**
   * Schedules an update. It will run on the next UI update available.
   * @method scheduleUpdate
   * @memberof Popper
   */
  Popper.prototype.scheduleUpdate = function scheduleUpdate () {
    return requestAnimationFrame(this.update);
  };
  /**
   * Collection of utilities useful when writing custom modifiers.
   * Starting from version 1.7, this method is available only if you
   * include `popper-utils.js` before `popper.js`.
   *
   * **DEPRECATION**: This way to access PopperUtils is deprecated
   * and will be removed in v2! Use the PopperUtils module directly instead.
   * Due to the high instability of the methods contained in Utils, we can't
   * guarantee them to follow semver. Use them at your own risk!
   * @static
   * @private
   * @type {Object}
   * @deprecated since version 1.8
   * @member Utils
   * @memberof Popper
   */
  Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
  Popper.placements = placements;
  Popper.Defaults = Defaults;

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): dropdown.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$4                     = 'dropdown';
  var VERSION$4                  = '4.4.1';
  var DATA_KEY$4                 = 'bs.dropdown';
  var EVENT_KEY$4                = "." + DATA_KEY$4;
  var DATA_API_KEY$4             = '.data-api';
  var JQUERY_NO_CONFLICT$4       = $.fn[NAME$4];
  var ESCAPE_KEYCODE           = 27; // KeyboardEvent.which value for Escape (Esc) key
  var SPACE_KEYCODE            = 32; // KeyboardEvent.which value for space key
  var TAB_KEYCODE              = 9; // KeyboardEvent.which value for tab key
  var ARROW_UP_KEYCODE         = 38; // KeyboardEvent.which value for up arrow key
  var ARROW_DOWN_KEYCODE       = 40; // KeyboardEvent.which value for down arrow key
  var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
  var REGEXP_KEYDOWN           = new RegExp((ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE));

  var Event$4 = {
    HIDE             : ("hide" + EVENT_KEY$4),
    HIDDEN           : ("hidden" + EVENT_KEY$4),
    SHOW             : ("show" + EVENT_KEY$4),
    SHOWN            : ("shown" + EVENT_KEY$4),
    CLICK            : ("click" + EVENT_KEY$4),
    CLICK_DATA_API   : ("click" + EVENT_KEY$4 + DATA_API_KEY$4),
    KEYDOWN_DATA_API : ("keydown" + EVENT_KEY$4 + DATA_API_KEY$4),
    KEYUP_DATA_API   : ("keyup" + EVENT_KEY$4 + DATA_API_KEY$4)
  };

  var ClassName$4 = {
    DISABLED        : 'disabled',
    SHOW            : 'show',
    DROPUP          : 'dropup',
    DROPRIGHT       : 'dropright',
    DROPLEFT        : 'dropleft',
    MENURIGHT       : 'dropdown-menu-right',
    MENULEFT        : 'dropdown-menu-left',
    POSITION_STATIC : 'position-static'
  };

  var Selector$4 = {
    DATA_TOGGLE   : '[data-toggle="dropdown"]',
    FORM_CHILD    : '.dropdown form',
    MENU          : '.dropdown-menu',
    NAVBAR_NAV    : '.navbar-nav',
    VISIBLE_ITEMS : '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
  };

  var AttachmentMap = {
    TOP       : 'top-start',
    TOPEND    : 'top-end',
    BOTTOM    : 'bottom-start',
    BOTTOMEND : 'bottom-end',
    RIGHT     : 'right-start',
    RIGHTEND  : 'right-end',
    LEFT      : 'left-start',
    LEFTEND   : 'left-end'
  };

  var Default$2 = {
    offset       : 0,
    flip         : true,
    boundary     : 'scrollParent',
    reference    : 'toggle',
    display      : 'dynamic',
    popperConfig : null
  };

  var DefaultType$2 = {
    offset       : '(number|string|function)',
    flip         : 'boolean',
    boundary     : '(string|element)',
    reference    : '(string|element)',
    display      : 'string',
    popperConfig : '(null|object)'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Dropdown = function Dropdown(element, config) {
    this._element= element;
    this._popper = null;
    this._config = this._getConfig(config);
    this._menu   = this._getMenuElement();
    this._inNavbar = this._detectNavbar();

    this._addEventListeners();
  };

  var staticAccessors$4 = { VERSION: { configurable: true },Default: { configurable: true },DefaultType: { configurable: true } };

  // Getters

  staticAccessors$4.VERSION.get = function () {
    return VERSION$4
  };

  staticAccessors$4.Default.get = function () {
    return Default$2
  };

  staticAccessors$4.DefaultType.get = function () {
    return DefaultType$2
  };

  // Public

  Dropdown.prototype.toggle = function toggle () {
    if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED)) {
      return
    }

    var isActive = $(this._menu).hasClass(ClassName$4.SHOW);

    Dropdown._clearMenus();

    if (isActive) {
      return
    }

    this.show(true);
  };

  Dropdown.prototype.show = function show (usePopper) {
      if ( usePopper === void 0 ) usePopper = false;

    if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || $(this._menu).hasClass(ClassName$4.SHOW)) {
      return
    }

    var relatedTarget = {
      relatedTarget: this._element
    };
    var showEvent = $.Event(Event$4.SHOW, relatedTarget);
    var parent = Dropdown._getParentFromElement(this._element);

    $(parent).trigger(showEvent);

    if (showEvent.isDefaultPrevented()) {
      return
    }

    // Disable totally Popper.js for Dropdown in Navbar
    if (!this._inNavbar && usePopper) {
      /**
       * Check for Popper dependency
       * Popper - https://popper.js.org
       */
      if (typeof Popper === 'undefined') {
        throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org/)')
      }

      var referenceElement = this._element;

      if (this._config.reference === 'parent') {
        referenceElement = parent;
      } else if (Util.isElement(this._config.reference)) {
        referenceElement = this._config.reference;

        // Check if it's jQuery element
        if (typeof this._config.reference.jquery !== 'undefined') {
          referenceElement = this._config.reference[0];
        }
      }

      // If boundary is not `scrollParent`, then set position to `static`
      // to allow the menu to "escape" the scroll parent's boundaries
      // https://github.com/twbs/bootstrap/issues/24251
      if (this._config.boundary !== 'scrollParent') {
        $(parent).addClass(ClassName$4.POSITION_STATIC);
      }
      this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
    }

    // If this is a touch-enabled device we add extra
    // empty mouseover listeners to the body's immediate children;
    // only needed because of broken event delegation on iOS
    // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
    if ('ontouchstart' in document.documentElement &&
        $(parent).closest(Selector$4.NAVBAR_NAV).length === 0) {
      $(document.body).children().on('mouseover', null, $.noop);
    }

    this._element.focus();
    this._element.setAttribute('aria-expanded', true);

    $(this._menu).toggleClass(ClassName$4.SHOW);
    $(parent)
      .toggleClass(ClassName$4.SHOW)
      .trigger($.Event(Event$4.SHOWN, relatedTarget));
  };

  Dropdown.prototype.hide = function hide () {
    if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || !$(this._menu).hasClass(ClassName$4.SHOW)) {
      return
    }

    var relatedTarget = {
      relatedTarget: this._element
    };
    var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
    var parent = Dropdown._getParentFromElement(this._element);

    $(parent).trigger(hideEvent);

    if (hideEvent.isDefaultPrevented()) {
      return
    }

    if (this._popper) {
      this._popper.destroy();
    }

    $(this._menu).toggleClass(ClassName$4.SHOW);
    $(parent)
      .toggleClass(ClassName$4.SHOW)
      .trigger($.Event(Event$4.HIDDEN, relatedTarget));
  };

  Dropdown.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY$4);
    $(this._element).off(EVENT_KEY$4);
    this._element = null;
    this._menu = null;
    if (this._popper !== null) {
      this._popper.destroy();
      this._popper = null;
    }
  };

  Dropdown.prototype.update = function update () {
    this._inNavbar = this._detectNavbar();
    if (this._popper !== null) {
      this._popper.scheduleUpdate();
    }
  };

  // Private

  Dropdown.prototype._addEventListeners = function _addEventListeners () {
      var this$1 = this;

    $(this._element).on(Event$4.CLICK, function (event) {
      event.preventDefault();
      event.stopPropagation();
      this$1.toggle();
    });
  };

  Dropdown.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, this.constructor.Default,
      $(this._element).data(),
      config);

    Util.typeCheckConfig(
      NAME$4,
      config,
      this.constructor.DefaultType
    );

    return config
  };

  Dropdown.prototype._getMenuElement = function _getMenuElement () {
    if (!this._menu) {
      var parent = Dropdown._getParentFromElement(this._element);

      if (parent) {
        this._menu = parent.querySelector(Selector$4.MENU);
      }
    }
    return this._menu
  };

  Dropdown.prototype._getPlacement = function _getPlacement () {
    var $parentDropdown = $(this._element.parentNode);
    var placement = AttachmentMap.BOTTOM;

    // Handle dropup
    if ($parentDropdown.hasClass(ClassName$4.DROPUP)) {
      placement = AttachmentMap.TOP;
      if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
        placement = AttachmentMap.TOPEND;
      }
    } else if ($parentDropdown.hasClass(ClassName$4.DROPRIGHT)) {
      placement = AttachmentMap.RIGHT;
    } else if ($parentDropdown.hasClass(ClassName$4.DROPLEFT)) {
      placement = AttachmentMap.LEFT;
    } else if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
      placement = AttachmentMap.BOTTOMEND;
    }
    return placement
  };

  Dropdown.prototype._detectNavbar = function _detectNavbar () {
    return $(this._element).closest('.navbar').length > 0
  };

  Dropdown.prototype._getOffset = function _getOffset () {
      var this$1 = this;

    var offset = {};

    if (typeof this._config.offset === 'function') {
      offset.fn = function (data) {
        data.offsets = Object.assign({}, data.offsets,
          this$1._config.offset(data.offsets, this$1._element) || {});

        return data
      };
    } else {
      offset.offset = this._config.offset;
    }

    return offset
  };

  Dropdown.prototype._getPopperConfig = function _getPopperConfig () {
    var popperConfig = {
      placement: this._getPlacement(),
      modifiers: {
        offset: this._getOffset(),
        flip: {
          enabled: this._config.flip
        },
        preventOverflow: {
          boundariesElement: this._config.boundary
        }
      }
    };

    // Disable Popper.js if we have a static display
    if (this._config.display === 'static') {
      popperConfig.modifiers.applyStyle = {
        enabled: false
      };
    }

    return Object.assign({}, popperConfig,
      this._config.popperConfig)
  };

  // Static

  Dropdown._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$4);
      var _config = typeof config === 'object' ? config : null;

      if (!data) {
        data = new Dropdown(this, _config);
        $(this).data(DATA_KEY$4, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config]();
      }
    })
  };

  Dropdown._clearMenus = function _clearMenus (event) {
    if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH ||
      event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
      return
    }

    var toggles = [].slice.call(document.querySelectorAll(Selector$4.DATA_TOGGLE));

    for (var i = 0, len = toggles.length; i < len; i++) {
      var parent = Dropdown._getParentFromElement(toggles[i]);
      var context = $(toggles[i]).data(DATA_KEY$4);
      var relatedTarget = {
        relatedTarget: toggles[i]
      };

      if (event && event.type === 'click') {
        relatedTarget.clickEvent = event;
      }

      if (!context) {
        continue
      }

      var dropdownMenu = context._menu;
      if (!$(parent).hasClass(ClassName$4.SHOW)) {
        continue
      }

      if (event && (event.type === 'click' &&
          /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) &&
          $.contains(parent, event.target)) {
        continue
      }

      var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
      $(parent).trigger(hideEvent);
      if (hideEvent.isDefaultPrevented()) {
        continue
      }

      // If this is a touch-enabled device we remove the extra
      // empty mouseover listeners we added for iOS support
      if ('ontouchstart' in document.documentElement) {
        $(document.body).children().off('mouseover', null, $.noop);
      }

      toggles[i].setAttribute('aria-expanded', 'false');

      if (context._popper) {
        context._popper.destroy();
      }

      $(dropdownMenu).removeClass(ClassName$4.SHOW);
      $(parent)
        .removeClass(ClassName$4.SHOW)
        .trigger($.Event(Event$4.HIDDEN, relatedTarget));
    }
  };

  Dropdown._getParentFromElement = function _getParentFromElement (element) {
    var parent;
    var selector = Util.getSelectorFromElement(element);

    if (selector) {
      parent = document.querySelector(selector);
    }

    return parent || element.parentNode
  };

  // eslint-disable-next-line complexity
  Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler (event) {
    // If not input/textarea:
    //- And not a key in REGEXP_KEYDOWN => not a dropdown command
    // If input/textarea:
    //- If space key => not a dropdown command
    //- If key is other than escape
    //  - If key is not up or down => not a dropdown command
    //  - If trigger inside the menu => not a dropdown command
    if (/input|textarea/i.test(event.target.tagName)
      ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE &&
      (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE ||
        $(event.target).closest(Selector$4.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
      return
    }

    event.preventDefault();
    event.stopPropagation();

    if (this.disabled || $(this).hasClass(ClassName$4.DISABLED)) {
      return
    }

    var parent = Dropdown._getParentFromElement(this);
    var isActive = $(parent).hasClass(ClassName$4.SHOW);

    if (!isActive && event.which === ESCAPE_KEYCODE) {
      return
    }

    if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
      if (event.which === ESCAPE_KEYCODE) {
        var toggle = parent.querySelector(Selector$4.DATA_TOGGLE);
        $(toggle).trigger('focus');
      }

      $(this).trigger('click');
      return
    }

    var items = [].slice.call(parent.querySelectorAll(Selector$4.VISIBLE_ITEMS))
      .filter(function (item) { return $(item).is(':visible'); });

    if (items.length === 0) {
      return
    }

    var index = items.indexOf(event.target);

    if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up
      index--;
    }

    if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down
      index++;
    }

    if (index < 0) {
      index = 0;
    }

    items[index].focus();
  };

  Object.defineProperties( Dropdown, staticAccessors$4 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document)
    .on(Event$4.KEYDOWN_DATA_API, Selector$4.DATA_TOGGLE, Dropdown._dataApiKeydownHandler)
    .on(Event$4.KEYDOWN_DATA_API, Selector$4.MENU, Dropdown._dataApiKeydownHandler)
    .on(((Event$4.CLICK_DATA_API) + " " + (Event$4.KEYUP_DATA_API)), Dropdown._clearMenus)
    .on(Event$4.CLICK_DATA_API, Selector$4.DATA_TOGGLE, function (event) {
      event.preventDefault();
      event.stopPropagation();
      Dropdown._jQueryInterface.call($(this), 'toggle');
    })
    .on(Event$4.CLICK_DATA_API, Selector$4.FORM_CHILD, function (e) {
      e.stopPropagation();
    });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$4] = Dropdown._jQueryInterface;
  $.fn[NAME$4].Constructor = Dropdown;
  $.fn[NAME$4].noConflict = function () {
    $.fn[NAME$4] = JQUERY_NO_CONFLICT$4;
    return Dropdown._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): modal.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$5               = 'modal';
  var VERSION$5            = '4.4.1';
  var DATA_KEY$5           = 'bs.modal';
  var EVENT_KEY$5          = "." + DATA_KEY$5;
  var DATA_API_KEY$5       = '.data-api';
  var JQUERY_NO_CONFLICT$5 = $.fn[NAME$5];
  var ESCAPE_KEYCODE$1     = 27; // KeyboardEvent.which value for Escape (Esc) key

  var Default$3 = {
    backdrop : true,
    keyboard : true,
    focus    : true,
    show     : true
  };

  var DefaultType$3 = {
    backdrop : '(boolean|string)',
    keyboard : 'boolean',
    focus    : 'boolean',
    show     : 'boolean'
  };

  var Event$5 = {
    HIDE              : ("hide" + EVENT_KEY$5),
    HIDE_PREVENTED    : ("hidePrevented" + EVENT_KEY$5),
    HIDDEN            : ("hidden" + EVENT_KEY$5),
    SHOW              : ("show" + EVENT_KEY$5),
    SHOWN             : ("shown" + EVENT_KEY$5),
    FOCUSIN           : ("focusin" + EVENT_KEY$5),
    RESIZE            : ("resize" + EVENT_KEY$5),
    CLICK_DISMISS     : ("click.dismiss" + EVENT_KEY$5),
    KEYDOWN_DISMISS   : ("keydown.dismiss" + EVENT_KEY$5),
    MOUSEUP_DISMISS   : ("mouseup.dismiss" + EVENT_KEY$5),
    MOUSEDOWN_DISMISS : ("mousedown.dismiss" + EVENT_KEY$5),
    CLICK_DATA_API    : ("click" + EVENT_KEY$5 + DATA_API_KEY$5)
  };

  var ClassName$5 = {
    SCROLLABLE         : 'modal-dialog-scrollable',
    SCROLLBAR_MEASURER : 'modal-scrollbar-measure',
    BACKDROP           : 'modal-backdrop',
    OPEN               : 'modal-open',
    FADE               : 'fade',
    SHOW               : 'show',
    STATIC             : 'modal-static'
  };

  var Selector$5 = {
    DIALOG         : '.modal-dialog',
    MODAL_BODY     : '.modal-body',
    DATA_TOGGLE    : '[data-toggle="modal"]',
    DATA_DISMISS   : '[data-dismiss="modal"]',
    FIXED_CONTENT  : '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
    STICKY_CONTENT : '.sticky-top'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Modal = function Modal(element, config) {
    this._config            = this._getConfig(config);
    this._element           = element;
    this._dialog            = element.querySelector(Selector$5.DIALOG);
    this._backdrop          = null;
    this._isShown           = false;
    this._isBodyOverflowing = false;
    this._ignoreBackdropClick = false;
    this._isTransitioning   = false;
    this._scrollbarWidth    = 0;
  };

  var staticAccessors$5 = { VERSION: { configurable: true },Default: { configurable: true } };

  // Getters

  staticAccessors$5.VERSION.get = function () {
    return VERSION$5
  };

  staticAccessors$5.Default.get = function () {
    return Default$3
  };

  // Public

  Modal.prototype.toggle = function toggle (relatedTarget) {
    return this._isShown ? this.hide() : this.show(relatedTarget)
  };

  Modal.prototype.show = function show (relatedTarget) {
      var this$1 = this;

    if (this._isShown || this._isTransitioning) {
      return
    }

    if ($(this._element).hasClass(ClassName$5.FADE)) {
      this._isTransitioning = true;
    }

    var showEvent = $.Event(Event$5.SHOW, {
      relatedTarget: relatedTarget
    });

    $(this._element).trigger(showEvent);

    if (this._isShown || showEvent.isDefaultPrevented()) {
      return
    }

    this._isShown = true;

    this._checkScrollbar();
    this._setScrollbar();

    this._adjustDialog();

    this._setEscapeEvent();
    this._setResizeEvent();

    $(this._element).on(
      Event$5.CLICK_DISMISS,
      Selector$5.DATA_DISMISS,
      function (event) { return this$1.hide(event); }
    );

    $(this._dialog).on(Event$5.MOUSEDOWN_DISMISS, function () {
      $(this$1._element).one(Event$5.MOUSEUP_DISMISS, function (event) {
        if ($(event.target).is(this$1._element)) {
          this$1._ignoreBackdropClick = true;
        }
      });
    });

    this._showBackdrop(function () { return this$1._showElement(relatedTarget); });
  };

  Modal.prototype.hide = function hide (event) {
      var this$1 = this;

    if (event) {
      event.preventDefault();
    }

    if (!this._isShown || this._isTransitioning) {
      return
    }

    var hideEvent = $.Event(Event$5.HIDE);

    $(this._element).trigger(hideEvent);

    if (!this._isShown || hideEvent.isDefaultPrevented()) {
      return
    }

    this._isShown = false;
    var transition = $(this._element).hasClass(ClassName$5.FADE);

    if (transition) {
      this._isTransitioning = true;
    }

    this._setEscapeEvent();
    this._setResizeEvent();

    $(document).off(Event$5.FOCUSIN);

    $(this._element).removeClass(ClassName$5.SHOW);

    $(this._element).off(Event$5.CLICK_DISMISS);
    $(this._dialog).off(Event$5.MOUSEDOWN_DISMISS);


    if (transition) {
      var transitionDuration= Util.getTransitionDurationFromElement(this._element);

      $(this._element)
        .one(Util.TRANSITION_END, function (event) { return this$1._hideModal(event); })
        .emulateTransitionEnd(transitionDuration);
    } else {
      this._hideModal();
    }
  };

  Modal.prototype.dispose = function dispose () {
    [window, this._element, this._dialog]
      .forEach(function (htmlElement) { return $(htmlElement).off(EVENT_KEY$5); });

    /**
     * `document` has 2 events `Event.FOCUSIN` and `Event.CLICK_DATA_API`
     * Do not move `document` in `htmlElements` array
     * It will remove `Event.CLICK_DATA_API` event that should remain
     */
    $(document).off(Event$5.FOCUSIN);

    $.removeData(this._element, DATA_KEY$5);

    this._config            = null;
    this._element           = null;
    this._dialog            = null;
    this._backdrop          = null;
    this._isShown           = null;
    this._isBodyOverflowing = null;
    this._ignoreBackdropClick = null;
    this._isTransitioning   = null;
    this._scrollbarWidth    = null;
  };

  Modal.prototype.handleUpdate = function handleUpdate () {
    this._adjustDialog();
  };

  // Private

  Modal.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, Default$3,
      config);
    Util.typeCheckConfig(NAME$5, config, DefaultType$3);
    return config
  };

  Modal.prototype._triggerBackdropTransition = function _triggerBackdropTransition () {
      var this$1 = this;

    if (this._config.backdrop === 'static') {
      var hideEventPrevented = $.Event(Event$5.HIDE_PREVENTED);

      $(this._element).trigger(hideEventPrevented);
      if (hideEventPrevented.defaultPrevented) {
        return
      }

      this._element.classList.add(ClassName$5.STATIC);

      var modalTransitionDuration = Util.getTransitionDurationFromElement(this._element);

      $(this._element).one(Util.TRANSITION_END, function () {
        this$1._element.classList.remove(ClassName$5.STATIC);
      })
        .emulateTransitionEnd(modalTransitionDuration);
      this._element.focus();
    } else {
      this.hide();
    }
  };

  Modal.prototype._showElement = function _showElement (relatedTarget) {
      var this$1 = this;

    var transition = $(this._element).hasClass(ClassName$5.FADE);
    var modalBody = this._dialog ? this._dialog.querySelector(Selector$5.MODAL_BODY) : null;

    if (!this._element.parentNode ||
        this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
      // Don't move modal's DOM position
      document.body.appendChild(this._element);
    }

    this._element.style.display = 'block';
    this._element.removeAttribute('aria-hidden');
    this._element.setAttribute('aria-modal', true);

    if ($(this._dialog).hasClass(ClassName$5.SCROLLABLE) && modalBody) {
      modalBody.scrollTop = 0;
    } else {
      this._element.scrollTop = 0;
    }

    if (transition) {
      Util.reflow(this._element);
    }

    $(this._element).addClass(ClassName$5.SHOW);

    if (this._config.focus) {
      this._enforceFocus();
    }

    var shownEvent = $.Event(Event$5.SHOWN, {
      relatedTarget: relatedTarget
    });

    var transitionComplete = function () {
      if (this$1._config.focus) {
        this$1._element.focus();
      }
      this$1._isTransitioning = false;
      $(this$1._element).trigger(shownEvent);
    };

    if (transition) {
      var transitionDuration= Util.getTransitionDurationFromElement(this._dialog);

      $(this._dialog)
        .one(Util.TRANSITION_END, transitionComplete)
        .emulateTransitionEnd(transitionDuration);
    } else {
      transitionComplete();
    }
  };

  Modal.prototype._enforceFocus = function _enforceFocus () {
      var this$1 = this;

    $(document)
      .off(Event$5.FOCUSIN) // Guard against infinite focus loop
      .on(Event$5.FOCUSIN, function (event) {
        if (document !== event.target &&
            this$1._element !== event.target &&
            $(this$1._element).has(event.target).length === 0) {
          this$1._element.focus();
        }
      });
  };

  Modal.prototype._setEscapeEvent = function _setEscapeEvent () {
      var this$1 = this;

    if (this._isShown && this._config.keyboard) {
      $(this._element).on(Event$5.KEYDOWN_DISMISS, function (event) {
        if (event.which === ESCAPE_KEYCODE$1) {
          this$1._triggerBackdropTransition();
        }
      });
    } else if (!this._isShown) {
      $(this._element).off(Event$5.KEYDOWN_DISMISS);
    }
  };

  Modal.prototype._setResizeEvent = function _setResizeEvent () {
      var this$1 = this;

    if (this._isShown) {
      $(window).on(Event$5.RESIZE, function (event) { return this$1.handleUpdate(event); });
    } else {
      $(window).off(Event$5.RESIZE);
    }
  };

  Modal.prototype._hideModal = function _hideModal () {
      var this$1 = this;

    this._element.style.display = 'none';
    this._element.setAttribute('aria-hidden', true);
    this._element.removeAttribute('aria-modal');
    this._isTransitioning = false;
    this._showBackdrop(function () {
      $(document.body).removeClass(ClassName$5.OPEN);
      this$1._resetAdjustments();
      this$1._resetScrollbar();
      $(this$1._element).trigger(Event$5.HIDDEN);
    });
  };

  Modal.prototype._removeBackdrop = function _removeBackdrop () {
    if (this._backdrop) {
      $(this._backdrop).remove();
      this._backdrop = null;
    }
  };

  Modal.prototype._showBackdrop = function _showBackdrop (callback) {
      var this$1 = this;

    var animate = $(this._element).hasClass(ClassName$5.FADE)
      ? ClassName$5.FADE : '';

    if (this._isShown && this._config.backdrop) {
      this._backdrop = document.createElement('div');
      this._backdrop.className = ClassName$5.BACKDROP;

      if (animate) {
        this._backdrop.classList.add(animate);
      }

      $(this._backdrop).appendTo(document.body);

      $(this._element).on(Event$5.CLICK_DISMISS, function (event) {
        if (this$1._ignoreBackdropClick) {
          this$1._ignoreBackdropClick = false;
          return
        }
        if (event.target !== event.currentTarget) {
          return
        }

        this$1._triggerBackdropTransition();
      });

      if (animate) {
        Util.reflow(this._backdrop);
      }

      $(this._backdrop).addClass(ClassName$5.SHOW);

      if (!callback) {
        return
      }

      if (!animate) {
        callback();
        return
      }

      var backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);

      $(this._backdrop)
        .one(Util.TRANSITION_END, callback)
        .emulateTransitionEnd(backdropTransitionDuration);
    } else if (!this._isShown && this._backdrop) {
      $(this._backdrop).removeClass(ClassName$5.SHOW);

      var callbackRemove = function () {
        this$1._removeBackdrop();
        if (callback) {
          callback();
        }
      };

      if ($(this._element).hasClass(ClassName$5.FADE)) {
        var backdropTransitionDuration$1 = Util.getTransitionDurationFromElement(this._backdrop);

        $(this._backdrop)
          .one(Util.TRANSITION_END, callbackRemove)
          .emulateTransitionEnd(backdropTransitionDuration$1);
      } else {
        callbackRemove();
      }
    } else if (callback) {
      callback();
    }
  };

  // ----------------------------------------------------------------------
  // the following methods are used to handle overflowing modals
  // todo (fat): these should probably be refactored out of modal.js
  // ----------------------------------------------------------------------

  Modal.prototype._adjustDialog = function _adjustDialog () {
    var isModalOverflowing =
      this._element.scrollHeight > document.documentElement.clientHeight;

    if (!this._isBodyOverflowing && isModalOverflowing) {
      this._element.style.paddingLeft = (this._scrollbarWidth) + "px";
    }

    if (this._isBodyOverflowing && !isModalOverflowing) {
      this._element.style.paddingRight = (this._scrollbarWidth) + "px";
    }
  };

  Modal.prototype._resetAdjustments = function _resetAdjustments () {
    this._element.style.paddingLeft = '';
    this._element.style.paddingRight = '';
  };

  Modal.prototype._checkScrollbar = function _checkScrollbar () {
    var rect = document.body.getBoundingClientRect();
    this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
    this._scrollbarWidth = this._getScrollbarWidth();
  };

  Modal.prototype._setScrollbar = function _setScrollbar () {
      var this$1 = this;

    if (this._isBodyOverflowing) {
      // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
      // while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
      var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
      var stickyContent = [].slice.call(document.querySelectorAll(Selector$5.STICKY_CONTENT));

      // Adjust fixed content padding
      $(fixedContent).each(function (index, element) {
        var actualPadding = element.style.paddingRight;
        var calculatedPadding = $(element).css('padding-right');
        $(element)
          .data('padding-right', actualPadding)
          .css('padding-right', ((parseFloat(calculatedPadding) + this$1._scrollbarWidth) + "px"));
      });

      // Adjust sticky content margin
      $(stickyContent).each(function (index, element) {
        var actualMargin = element.style.marginRight;
        var calculatedMargin = $(element).css('margin-right');
        $(element)
          .data('margin-right', actualMargin)
          .css('margin-right', ((parseFloat(calculatedMargin) - this$1._scrollbarWidth) + "px"));
      });

      // Adjust body padding
      var actualPadding = document.body.style.paddingRight;
      var calculatedPadding = $(document.body).css('padding-right');
      $(document.body)
        .data('padding-right', actualPadding)
        .css('padding-right', ((parseFloat(calculatedPadding) + this._scrollbarWidth) + "px"));
    }

    $(document.body).addClass(ClassName$5.OPEN);
  };

  Modal.prototype._resetScrollbar = function _resetScrollbar () {
    // Restore fixed content padding
    var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
    $(fixedContent).each(function (index, element) {
      var padding = $(element).data('padding-right');
      $(element).removeData('padding-right');
      element.style.paddingRight = padding ? padding : '';
    });

    // Restore sticky content
    var elements = [].slice.call(document.querySelectorAll(("" + (Selector$5.STICKY_CONTENT))));
    $(elements).each(function (index, element) {
      var margin = $(element).data('margin-right');
      if (typeof margin !== 'undefined') {
        $(element).css('margin-right', margin).removeData('margin-right');
      }
    });

    // Restore body padding
    var padding = $(document.body).data('padding-right');
    $(document.body).removeData('padding-right');
    document.body.style.paddingRight = padding ? padding : '';
  };

  Modal.prototype._getScrollbarWidth = function _getScrollbarWidth () { // thx d.walsh
    var scrollDiv = document.createElement('div');
    scrollDiv.className = ClassName$5.SCROLLBAR_MEASURER;
    document.body.appendChild(scrollDiv);
    var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
    document.body.removeChild(scrollDiv);
    return scrollbarWidth
  };

  // Static

  Modal._jQueryInterface = function _jQueryInterface (config, relatedTarget) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$5);
      var _config = Object.assign({}, Default$3,
        $(this).data(),
        typeof config === 'object' && config ? config : {});

      if (!data) {
        data = new Modal(this, _config);
        $(this).data(DATA_KEY$5, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config](relatedTarget);
      } else if (_config.show) {
        data.show(relatedTarget);
      }
    })
  };

  Object.defineProperties( Modal, staticAccessors$5 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document).on(Event$5.CLICK_DATA_API, Selector$5.DATA_TOGGLE, function (event) {
    var this$1 = this;

    var target;
    var selector = Util.getSelectorFromElement(this);

    if (selector) {
      target = document.querySelector(selector);
    }

    var config = $(target).data(DATA_KEY$5)
      ? 'toggle' : Object.assign({}, $(target).data(),
        $(this).data());

    if (this.tagName === 'A' || this.tagName === 'AREA') {
      event.preventDefault();
    }

    var $target = $(target).one(Event$5.SHOW, function (showEvent) {
      if (showEvent.isDefaultPrevented()) {
        // Only register focus restorer if modal will actually get shown
        return
      }

      $target.one(Event$5.HIDDEN, function () {
        if ($(this$1).is(':visible')) {
          this$1.focus();
        }
      });
    });

    Modal._jQueryInterface.call($(target), config, this);
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$5] = Modal._jQueryInterface;
  $.fn[NAME$5].Constructor = Modal;
  $.fn[NAME$5].noConflict = function () {
    $.fn[NAME$5] = JQUERY_NO_CONFLICT$5;
    return Modal._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): tools/sanitizer.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var uriAttrs = [
    'background',
    'cite',
    'href',
    'itemtype',
    'longdesc',
    'poster',
    'src',
    'xlink:href'
  ];

  var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;

  var DefaultWhitelist = {
    // Global attributes allowed on any supplied element below.
    '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
    a: ['target', 'href', 'title', 'rel'],
    area: [],
    b: [],
    br: [],
    col: [],
    code: [],
    div: [],
    em: [],
    hr: [],
    h1: [],
    h2: [],
    h3: [],
    h4: [],
    h5: [],
    h6: [],
    i: [],
    img: ['src', 'alt', 'title', 'width', 'height'],
    li: [],
    ol: [],
    p: [],
    pre: [],
    s: [],
    small: [],
    span: [],
    sub: [],
    sup: [],
    strong: [],
    u: [],
    ul: []
  };

  /**
   * A pattern that recognizes a commonly useful subset of URLs that are safe.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */
  var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;

  /**
   * A pattern that matches safe data URLs. Only matches image, video and audio types.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */
  var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;

  function allowedAttribute(attr, allowedAttributeList) {
    var attrName = attr.nodeName.toLowerCase();

    if (allowedAttributeList.indexOf(attrName) !== -1) {
      if (uriAttrs.indexOf(attrName) !== -1) {
        return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN))
      }

      return true
    }

    var regExp = allowedAttributeList.filter(function (attrRegex) { return attrRegex instanceof RegExp; });

    // Check if a regular expression validates the attribute.
    for (var i = 0, l = regExp.length; i < l; i++) {
      if (attrName.match(regExp[i])) {
        return true
      }
    }

    return false
  }

  function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
    if (unsafeHtml.length === 0) {
      return unsafeHtml
    }

    if (sanitizeFn && typeof sanitizeFn === 'function') {
      return sanitizeFn(unsafeHtml)
    }

    var domParser = new window.DOMParser();
    var createdDocument = domParser.parseFromString(unsafeHtml, 'text/html');
    var whitelistKeys = Object.keys(whiteList);
    var elements = [].slice.call(createdDocument.body.querySelectorAll('*'));

    var loop = function ( i, len ) {
      var el = elements[i];
      var elName = el.nodeName.toLowerCase();

      if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
        el.parentNode.removeChild(el);

        return
      }

      var attributeList = [].slice.call(el.attributes);
      var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);

      attributeList.forEach(function (attr) {
        if (!allowedAttribute(attr, whitelistedAttributes)) {
          el.removeAttribute(attr.nodeName);
        }
      });
    };

    for (var i = 0, len = elements.length; i < len; i++) loop( i, len );

    return createdDocument.body.innerHTML
  }

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): tooltip.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$6                  = 'tooltip';
  var VERSION$6               = '4.4.1';
  var DATA_KEY$6              = 'bs.tooltip';
  var EVENT_KEY$6             = "." + DATA_KEY$6;
  var JQUERY_NO_CONFLICT$6    = $.fn[NAME$6];
  var CLASS_PREFIX          = 'bs-tooltip';
  var BSCLS_PREFIX_REGEX    = new RegExp(("(^|\\s)" + CLASS_PREFIX + "\\S+"), 'g');
  var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];

  var DefaultType$4 = {
    animation         : 'boolean',
    template          : 'string',
    title             : '(string|element|function)',
    trigger           : 'string',
    delay             : '(number|object)',
    html              : 'boolean',
    selector          : '(string|boolean)',
    placement         : '(string|function)',
    offset            : '(number|string|function)',
    container         : '(string|element|boolean)',
    fallbackPlacement : '(string|array)',
    boundary          : '(string|element)',
    sanitize          : 'boolean',
    sanitizeFn        : '(null|function)',
    whiteList         : 'object',
    popperConfig      : '(null|object)'
  };

  var AttachmentMap$1 = {
    AUTO   : 'auto',
    TOP    : 'top',
    RIGHT  : 'right',
    BOTTOM : 'bottom',
    LEFT   : 'left'
  };

  var Default$4 = {
    animation         : true,
    template          : '<div class="tooltip" role="tooltip">' +
                      '<div class="arrow"></div>' +
                      '<div class="tooltip-inner"></div></div>',
    trigger           : 'hover focus',
    title             : '',
    delay             : 0,
    html              : false,
    selector          : false,
    placement         : 'top',
    offset            : 0,
    container         : false,
    fallbackPlacement : 'flip',
    boundary          : 'scrollParent',
    sanitize          : true,
    sanitizeFn        : null,
    whiteList         : DefaultWhitelist,
    popperConfig      : null
  };

  var HoverState = {
    SHOW : 'show',
    OUT  : 'out'
  };

  var Event$6 = {
    HIDE       : ("hide" + EVENT_KEY$6),
    HIDDEN     : ("hidden" + EVENT_KEY$6),
    SHOW       : ("show" + EVENT_KEY$6),
    SHOWN      : ("shown" + EVENT_KEY$6),
    INSERTED   : ("inserted" + EVENT_KEY$6),
    CLICK      : ("click" + EVENT_KEY$6),
    FOCUSIN    : ("focusin" + EVENT_KEY$6),
    FOCUSOUT   : ("focusout" + EVENT_KEY$6),
    MOUSEENTER : ("mouseenter" + EVENT_KEY$6),
    MOUSELEAVE : ("mouseleave" + EVENT_KEY$6)
  };

  var ClassName$6 = {
    FADE : 'fade',
    SHOW : 'show'
  };

  var Selector$6 = {
    TOOLTIP       : '.tooltip',
    TOOLTIP_INNER : '.tooltip-inner',
    ARROW         : '.arrow'
  };

  var Trigger = {
    HOVER  : 'hover',
    FOCUS  : 'focus',
    CLICK  : 'click',
    MANUAL : 'manual'
  };


  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tooltip = function Tooltip(element, config) {
    if (typeof Popper === 'undefined') {
      throw new TypeError('Bootstrap\'s tooltips require Popper.js (https://popper.js.org/)')
    }

    // private
    this._isEnabled   = true;
    this._timeout     = 0;
    this._hoverState  = '';
    this._activeTrigger = {};
    this._popper      = null;

    // Protected
    this.element = element;
    this.config= this._getConfig(config);
    this.tip   = null;

    this._setListeners();
  };

  var staticAccessors$6 = { VERSION: { configurable: true },Default: { configurable: true },NAME: { configurable: true },DATA_KEY: { configurable: true },Event: { configurable: true },EVENT_KEY: { configurable: true },DefaultType: { configurable: true } };

  // Getters

  staticAccessors$6.VERSION.get = function () {
    return VERSION$6
  };

  staticAccessors$6.Default.get = function () {
    return Default$4
  };

  staticAccessors$6.NAME.get = function () {
    return NAME$6
  };

  staticAccessors$6.DATA_KEY.get = function () {
    return DATA_KEY$6
  };

  staticAccessors$6.Event.get = function () {
    return Event$6
  };

  staticAccessors$6.EVENT_KEY.get = function () {
    return EVENT_KEY$6
  };

  staticAccessors$6.DefaultType.get = function () {
    return DefaultType$4
  };

  // Public

  Tooltip.prototype.enable = function enable () {
    this._isEnabled = true;
  };

  Tooltip.prototype.disable = function disable () {
    this._isEnabled = false;
  };

  Tooltip.prototype.toggleEnabled = function toggleEnabled () {
    this._isEnabled = !this._isEnabled;
  };

  Tooltip.prototype.toggle = function toggle (event) {
    if (!this._isEnabled) {
      return
    }

    if (event) {
      var dataKey = this.constructor.DATA_KEY;
      var context = $(event.currentTarget).data(dataKey);

      if (!context) {
        context = new this.constructor(
          event.currentTarget,
          this._getDelegateConfig()
        );
        $(event.currentTarget).data(dataKey, context);
      }

      context._activeTrigger.click = !context._activeTrigger.click;

      if (context._isWithActiveTrigger()) {
        context._enter(null, context);
      } else {
        context._leave(null, context);
      }
    } else {
      if ($(this.getTipElement()).hasClass(ClassName$6.SHOW)) {
        this._leave(null, this);
        return
      }

      this._enter(null, this);
    }
  };

  Tooltip.prototype.dispose = function dispose () {
    clearTimeout(this._timeout);

    $.removeData(this.element, this.constructor.DATA_KEY);

    $(this.element).off(this.constructor.EVENT_KEY);
    $(this.element).closest('.modal').off('hide.bs.modal', this._hideModalHandler);

    if (this.tip) {
      $(this.tip).remove();
    }

    this._isEnabled   = null;
    this._timeout     = null;
    this._hoverState  = null;
    this._activeTrigger = null;
    if (this._popper) {
      this._popper.destroy();
    }

    this._popper = null;
    this.element = null;
    this.config= null;
    this.tip   = null;
  };

  Tooltip.prototype.show = function show () {
      var this$1 = this;

    if ($(this.element).css('display') === 'none') {
      throw new Error('Please use show on visible elements')
    }

    var showEvent = $.Event(this.constructor.Event.SHOW);
    if (this.isWithContent() && this._isEnabled) {
      $(this.element).trigger(showEvent);

      var shadowRoot = Util.findShadowRoot(this.element);
      var isInTheDom = $.contains(
        shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement,
        this.element
      );

      if (showEvent.isDefaultPrevented() || !isInTheDom) {
        return
      }

      var tip = this.getTipElement();
      var tipId = Util.getUID(this.constructor.NAME);

      tip.setAttribute('id', tipId);
      this.element.setAttribute('aria-describedby', tipId);

      this.setContent();

      if (this.config.animation) {
        $(tip).addClass(ClassName$6.FADE);
      }

      var placement= typeof this.config.placement === 'function'
        ? this.config.placement.call(this, tip, this.element)
        : this.config.placement;

      var attachment = this._getAttachment(placement);
      this.addAttachmentClass(attachment);

      var container = this._getContainer();
      $(tip).data(this.constructor.DATA_KEY, this);

      if (!$.contains(this.element.ownerDocument.documentElement, this.tip)) {
        $(tip).appendTo(container);
      }

      $(this.element).trigger(this.constructor.Event.INSERTED);

      this._popper = new Popper(this.element, tip, this._getPopperConfig(attachment));

      $(tip).addClass(ClassName$6.SHOW);

      // If this is a touch-enabled device we add extra
      // empty mouseover listeners to the body's immediate children;
      // only needed because of broken event delegation on iOS
      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
      if ('ontouchstart' in document.documentElement) {
        $(document.body).children().on('mouseover', null, $.noop);
      }

      var complete = function () {
        if (this$1.config.animation) {
          this$1._fixTransition();
        }
        var prevHoverState = this$1._hoverState;
        this$1._hoverState   = null;

        $(this$1.element).trigger(this$1.constructor.Event.SHOWN);

        if (prevHoverState === HoverState.OUT) {
          this$1._leave(null, this$1);
        }
      };

      if ($(this.tip).hasClass(ClassName$6.FADE)) {
        var transitionDuration = Util.getTransitionDurationFromElement(this.tip);

        $(this.tip)
          .one(Util.TRANSITION_END, complete)
          .emulateTransitionEnd(transitionDuration);
      } else {
        complete();
      }
    }
  };

  Tooltip.prototype.hide = function hide (callback) {
      var this$1 = this;

    var tip     = this.getTipElement();
    var hideEvent = $.Event(this.constructor.Event.HIDE);
    var complete = function () {
      if (this$1._hoverState !== HoverState.SHOW && tip.parentNode) {
        tip.parentNode.removeChild(tip);
      }

      this$1._cleanTipClass();
      this$1.element.removeAttribute('aria-describedby');
      $(this$1.element).trigger(this$1.constructor.Event.HIDDEN);
      if (this$1._popper !== null) {
        this$1._popper.destroy();
      }

      if (callback) {
        callback();
      }
    };

    $(this.element).trigger(hideEvent);

    if (hideEvent.isDefaultPrevented()) {
      return
    }

    $(tip).removeClass(ClassName$6.SHOW);

    // If this is a touch-enabled device we remove the extra
    // empty mouseover listeners we added for iOS support
    if ('ontouchstart' in document.documentElement) {
      $(document.body).children().off('mouseover', null, $.noop);
    }

    this._activeTrigger[Trigger.CLICK] = false;
    this._activeTrigger[Trigger.FOCUS] = false;
    this._activeTrigger[Trigger.HOVER] = false;

    if ($(this.tip).hasClass(ClassName$6.FADE)) {
      var transitionDuration = Util.getTransitionDurationFromElement(tip);

      $(tip)
        .one(Util.TRANSITION_END, complete)
        .emulateTransitionEnd(transitionDuration);
    } else {
      complete();
    }

    this._hoverState = '';
  };

  Tooltip.prototype.update = function update () {
    if (this._popper !== null) {
      this._popper.scheduleUpdate();
    }
  };

  // Protected

  Tooltip.prototype.isWithContent = function isWithContent () {
    return Boolean(this.getTitle())
  };

  Tooltip.prototype.addAttachmentClass = function addAttachmentClass (attachment) {
    $(this.getTipElement()).addClass((CLASS_PREFIX + "-" + attachment));
  };

  Tooltip.prototype.getTipElement = function getTipElement () {
    this.tip = this.tip || $(this.config.template)[0];
    return this.tip
  };

  Tooltip.prototype.setContent = function setContent () {
    var tip = this.getTipElement();
    this.setElementContent($(tip.querySelectorAll(Selector$6.TOOLTIP_INNER)), this.getTitle());
    $(tip).removeClass(((ClassName$6.FADE) + " " + (ClassName$6.SHOW)));
  };

  Tooltip.prototype.setElementContent = function setElementContent ($element, content) {
    if (typeof content === 'object' && (content.nodeType || content.jquery)) {
      // Content is a DOM node or a jQuery
      if (this.config.html) {
        if (!$(content).parent().is($element)) {
          $element.empty().append(content);
        }
      } else {
        $element.text($(content).text());
      }

      return
    }

    if (this.config.html) {
      if (this.config.sanitize) {
        content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn);
      }

      $element.html(content);
    } else {
      $element.text(content);
    }
  };

  Tooltip.prototype.getTitle = function getTitle () {
    var title = this.element.getAttribute('data-original-title');

    if (!title) {
      title = typeof this.config.title === 'function'
        ? this.config.title.call(this.element)
        : this.config.title;
    }

    return title
  };

  // Private

  Tooltip.prototype._getPopperConfig = function _getPopperConfig (attachment) {
      var this$1 = this;

    var defaultBsConfig = {
      placement: attachment,
      modifiers: {
        offset: this._getOffset(),
        flip: {
          behavior: this.config.fallbackPlacement
        },
        arrow: {
          element: Selector$6.ARROW
        },
        preventOverflow: {
          boundariesElement: this.config.boundary
        }
      },
      onCreate: function (data) {
        if (data.originalPlacement !== data.placement) {
          this$1._handlePopperPlacementChange(data);
        }
      },
      onUpdate: function (data) { return this$1._handlePopperPlacementChange(data); }
    };

    return Object.assign({}, defaultBsConfig,
      this.config.popperConfig)
  };

  Tooltip.prototype._getOffset = function _getOffset () {
      var this$1 = this;

    var offset = {};

    if (typeof this.config.offset === 'function') {
      offset.fn = function (data) {
        data.offsets = Object.assign({}, data.offsets,
          this$1.config.offset(data.offsets, this$1.element) || {});

        return data
      };
    } else {
      offset.offset = this.config.offset;
    }

    return offset
  };

  Tooltip.prototype._getContainer = function _getContainer () {
    if (this.config.container === false) {
      return document.body
    }

    if (Util.isElement(this.config.container)) {
      return $(this.config.container)
    }

    return $(document).find(this.config.container)
  };

  Tooltip.prototype._getAttachment = function _getAttachment (placement) {
    return AttachmentMap$1[placement.toUpperCase()]
  };

  Tooltip.prototype._setListeners = function _setListeners () {
      var this$1 = this;

    var triggers = this.config.trigger.split(' ');

    triggers.forEach(function (trigger) {
      if (trigger === 'click') {
        $(this$1.element).on(
          this$1.constructor.Event.CLICK,
          this$1.config.selector,
          function (event) { return this$1.toggle(event); }
        );
      } else if (trigger !== Trigger.MANUAL) {
        var eventIn = trigger === Trigger.HOVER
          ? this$1.constructor.Event.MOUSEENTER
          : this$1.constructor.Event.FOCUSIN;
        var eventOut = trigger === Trigger.HOVER
          ? this$1.constructor.Event.MOUSELEAVE
          : this$1.constructor.Event.FOCUSOUT;

        $(this$1.element)
          .on(
            eventIn,
            this$1.config.selector,
            function (event) { return this$1._enter(event); }
          )
          .on(
            eventOut,
            this$1.config.selector,
            function (event) { return this$1._leave(event); }
          );
      }
    });

    this._hideModalHandler = function () {
      if (this$1.element) {
        this$1.hide();
      }
    };

    $(this.element).closest('.modal').on(
      'hide.bs.modal',
      this._hideModalHandler
    );

    if (this.config.selector) {
      this.config = Object.assign({}, this.config,
        {trigger: 'manual',
        selector: ''});
    } else {
      this._fixTitle();
    }
  };

  Tooltip.prototype._fixTitle = function _fixTitle () {
    var titleType = typeof this.element.getAttribute('data-original-title');

    if (this.element.getAttribute('title') || titleType !== 'string') {
      this.element.setAttribute(
        'data-original-title',
        this.element.getAttribute('title') || ''
      );

      this.element.setAttribute('title', '');
    }
  };

  Tooltip.prototype._enter = function _enter (event, context) {
    var dataKey = this.constructor.DATA_KEY;
    context = context || $(event.currentTarget).data(dataKey);

    if (!context) {
      context = new this.constructor(
        event.currentTarget,
        this._getDelegateConfig()
      );
      $(event.currentTarget).data(dataKey, context);
    }

    if (event) {
      context._activeTrigger[
        event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER
      ] = true;
    }

    if ($(context.getTipElement()).hasClass(ClassName$6.SHOW) || context._hoverState === HoverState.SHOW) {
      context._hoverState = HoverState.SHOW;
      return
    }

    clearTimeout(context._timeout);

    context._hoverState = HoverState.SHOW;

    if (!context.config.delay || !context.config.delay.show) {
      context.show();
      return
    }

    context._timeout = setTimeout(function () {
      if (context._hoverState === HoverState.SHOW) {
        context.show();
      }
    }, context.config.delay.show);
  };

  Tooltip.prototype._leave = function _leave (event, context) {
    var dataKey = this.constructor.DATA_KEY;
    context = context || $(event.currentTarget).data(dataKey);

    if (!context) {
      context = new this.constructor(
        event.currentTarget,
        this._getDelegateConfig()
      );
      $(event.currentTarget).data(dataKey, context);
    }

    if (event) {
      context._activeTrigger[
        event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER
      ] = false;
    }

    if (context._isWithActiveTrigger()) {
      return
    }

    clearTimeout(context._timeout);

    context._hoverState = HoverState.OUT;

    if (!context.config.delay || !context.config.delay.hide) {
      context.hide();
      return
    }

    context._timeout = setTimeout(function () {
      if (context._hoverState === HoverState.OUT) {
        context.hide();
      }
    }, context.config.delay.hide);
  };

  Tooltip.prototype._isWithActiveTrigger = function _isWithActiveTrigger () {
    for (var trigger in this._activeTrigger) {
      if (this._activeTrigger[trigger]) {
        return true
      }
    }

    return false
  };

  Tooltip.prototype._getConfig = function _getConfig (config) {
    var dataAttributes = $(this.element).data();

    Object.keys(dataAttributes)
      .forEach(function (dataAttr) {
        if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
          delete dataAttributes[dataAttr];
        }
      });

    config = Object.assign({}, this.constructor.Default,
      dataAttributes,
      typeof config === 'object' && config ? config : {});

    if (typeof config.delay === 'number') {
      config.delay = {
        show: config.delay,
        hide: config.delay
      };
    }

    if (typeof config.title === 'number') {
      config.title = config.title.toString();
    }

    if (typeof config.content === 'number') {
      config.content = config.content.toString();
    }

    Util.typeCheckConfig(
      NAME$6,
      config,
      this.constructor.DefaultType
    );

    if (config.sanitize) {
      config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn);
    }

    return config
  };

  Tooltip.prototype._getDelegateConfig = function _getDelegateConfig () {
    var config = {};

    if (this.config) {
      for (var key in this.config) {
        if (this.constructor.Default[key] !== this.config[key]) {
          config[key] = this.config[key];
        }
      }
    }

    return config
  };

  Tooltip.prototype._cleanTipClass = function _cleanTipClass () {
    var $tip = $(this.getTipElement());
    var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);
    if (tabClass !== null && tabClass.length) {
      $tip.removeClass(tabClass.join(''));
    }
  };

  Tooltip.prototype._handlePopperPlacementChange = function _handlePopperPlacementChange (popperData) {
    var popperInstance = popperData.instance;
    this.tip = popperInstance.popper;
    this._cleanTipClass();
    this.addAttachmentClass(this._getAttachment(popperData.placement));
  };

  Tooltip.prototype._fixTransition = function _fixTransition () {
    var tip = this.getTipElement();
    var initConfigAnimation = this.config.animation;

    if (tip.getAttribute('x-placement') !== null) {
      return
    }

    $(tip).removeClass(ClassName$6.FADE);
    this.config.animation = false;
    this.hide();
    this.show();
    this.config.animation = initConfigAnimation;
  };

  // Static

  Tooltip._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$6);
      var _config = typeof config === 'object' && config;

      if (!data && /dispose|hide/.test(config)) {
        return
      }

      if (!data) {
        data = new Tooltip(this, _config);
        $(this).data(DATA_KEY$6, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config]();
      }
    })
  };

  Object.defineProperties( Tooltip, staticAccessors$6 );

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$6] = Tooltip._jQueryInterface;
  $.fn[NAME$6].Constructor = Tooltip;
  $.fn[NAME$6].noConflict = function () {
    $.fn[NAME$6] = JQUERY_NO_CONFLICT$6;
    return Tooltip._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): popover.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$7                = 'popover';
  var VERSION$7             = '4.4.1';
  var DATA_KEY$7            = 'bs.popover';
  var EVENT_KEY$7           = "." + DATA_KEY$7;
  var JQUERY_NO_CONFLICT$7  = $.fn[NAME$7];
  var CLASS_PREFIX$1        = 'bs-popover';
  var BSCLS_PREFIX_REGEX$1  = new RegExp(("(^|\\s)" + CLASS_PREFIX$1 + "\\S+"), 'g');

  var Default$5 = Object.assign({}, Tooltip.Default,
    {placement : 'right',
    trigger   : 'click',
    content   : '',
    template  : '<div class="popover" role="tooltip">' +
                '<div class="arrow"></div>' +
                '<h3 class="popover-header"></h3>' +
                '<div class="popover-body"></div></div>'});

  var DefaultType$5 = Object.assign({}, Tooltip.DefaultType,
    {content : '(string|element|function)'});

  var ClassName$7 = {
    FADE : 'fade',
    SHOW : 'show'
  };

  var Selector$7 = {
    TITLE   : '.popover-header',
    CONTENT : '.popover-body'
  };

  var Event$7 = {
    HIDE       : ("hide" + EVENT_KEY$7),
    HIDDEN     : ("hidden" + EVENT_KEY$7),
    SHOW       : ("show" + EVENT_KEY$7),
    SHOWN      : ("shown" + EVENT_KEY$7),
    INSERTED   : ("inserted" + EVENT_KEY$7),
    CLICK      : ("click" + EVENT_KEY$7),
    FOCUSIN    : ("focusin" + EVENT_KEY$7),
    FOCUSOUT   : ("focusout" + EVENT_KEY$7),
    MOUSEENTER : ("mouseenter" + EVENT_KEY$7),
    MOUSELEAVE : ("mouseleave" + EVENT_KEY$7)
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Popover = /*@__PURE__*/(function (Tooltip) {
    function Popover () {
      Tooltip.apply(this, arguments);
    }

    if ( Tooltip ) Popover.__proto__ = Tooltip;
    Popover.prototype = Object.create( Tooltip && Tooltip.prototype );
    Popover.prototype.constructor = Popover;

    var staticAccessors = { VERSION: { configurable: true },Default: { configurable: true },NAME: { configurable: true },DATA_KEY: { configurable: true },Event: { configurable: true },EVENT_KEY: { configurable: true },DefaultType: { configurable: true } };

    staticAccessors.VERSION.get = function () {
      return VERSION$7
    };

    staticAccessors.Default.get = function () {
      return Default$5
    };

    staticAccessors.NAME.get = function () {
      return NAME$7
    };

    staticAccessors.DATA_KEY.get = function () {
      return DATA_KEY$7
    };

    staticAccessors.Event.get = function () {
      return Event$7
    };

    staticAccessors.EVENT_KEY.get = function () {
      return EVENT_KEY$7
    };

    staticAccessors.DefaultType.get = function () {
      return DefaultType$5
    };

    // Overrides

    Popover.prototype.isWithContent = function isWithContent () {
      return this.getTitle() || this._getContent()
    };

    Popover.prototype.addAttachmentClass = function addAttachmentClass (attachment) {
      $(this.getTipElement()).addClass((CLASS_PREFIX$1 + "-" + attachment));
    };

    Popover.prototype.getTipElement = function getTipElement () {
      this.tip = this.tip || $(this.config.template)[0];
      return this.tip
    };

    Popover.prototype.setContent = function setContent () {
      var $tip = $(this.getTipElement());

      // We use append for html objects to maintain js events
      this.setElementContent($tip.find(Selector$7.TITLE), this.getTitle());
      var content = this._getContent();
      if (typeof content === 'function') {
        content = content.call(this.element);
      }
      this.setElementContent($tip.find(Selector$7.CONTENT), content);

      $tip.removeClass(((ClassName$7.FADE) + " " + (ClassName$7.SHOW)));
    };

    // Private

    Popover.prototype._getContent = function _getContent () {
      return this.element.getAttribute('data-content') ||
        this.config.content
    };

    Popover.prototype._cleanTipClass = function _cleanTipClass () {
      var $tip = $(this.getTipElement());
      var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX$1);
      if (tabClass !== null && tabClass.length > 0) {
        $tip.removeClass(tabClass.join(''));
      }
    };

    // Static

    Popover._jQueryInterface = function _jQueryInterface (config) {
      return this.each(function () {
        var data = $(this).data(DATA_KEY$7);
        var _config = typeof config === 'object' ? config : null;

        if (!data && /dispose|hide/.test(config)) {
          return
        }

        if (!data) {
          data = new Popover(this, _config);
          $(this).data(DATA_KEY$7, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError(("No method named \"" + config + "\""))
          }
          data[config]();
        }
      })
    };

    Object.defineProperties( Popover, staticAccessors );

    return Popover;
  }(Tooltip));

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$7] = Popover._jQueryInterface;
  $.fn[NAME$7].Constructor = Popover;
  $.fn[NAME$7].noConflict = function () {
    $.fn[NAME$7] = JQUERY_NO_CONFLICT$7;
    return Popover._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): scrollspy.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$8               = 'scrollspy';
  var VERSION$8            = '4.4.1';
  var DATA_KEY$8           = 'bs.scrollspy';
  var EVENT_KEY$8          = "." + DATA_KEY$8;
  var DATA_API_KEY$6       = '.data-api';
  var JQUERY_NO_CONFLICT$8 = $.fn[NAME$8];

  var Default$6 = {
    offset : 10,
    method : 'auto',
    target : ''
  };

  var DefaultType$6 = {
    offset : 'number',
    method : 'string',
    target : '(string|element)'
  };

  var Event$8 = {
    ACTIVATE      : ("activate" + EVENT_KEY$8),
    SCROLL        : ("scroll" + EVENT_KEY$8),
    LOAD_DATA_API : ("load" + EVENT_KEY$8 + DATA_API_KEY$6)
  };

  var ClassName$8 = {
    DROPDOWN_ITEM : 'dropdown-item',
    DROPDOWN_MENU : 'dropdown-menu',
    ACTIVE        : 'active'
  };

  var Selector$8 = {
    DATA_SPY        : '[data-spy="scroll"]',
    ACTIVE          : '.active',
    NAV_LIST_GROUP  : '.nav, .list-group',
    NAV_LINKS       : '.nav-link',
    NAV_ITEMS       : '.nav-item',
    LIST_ITEMS      : '.list-group-item',
    DROPDOWN        : '.dropdown',
    DROPDOWN_ITEMS  : '.dropdown-item',
    DROPDOWN_TOGGLE : '.dropdown-toggle'
  };

  var OffsetMethod = {
    OFFSET   : 'offset',
    POSITION : 'position'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var ScrollSpy = function ScrollSpy(element, config) {
    var this$1 = this;

    this._element     = element;
    this._scrollElement = element.tagName === 'BODY' ? window : element;
    this._config      = this._getConfig(config);
    this._selector    = (this._config.target) + " " + (Selector$8.NAV_LINKS) + "," +
                          (this._config.target) + " " + (Selector$8.LIST_ITEMS) + "," +
                          (this._config.target) + " " + (Selector$8.DROPDOWN_ITEMS);
    this._offsets     = [];
    this._targets     = [];
    this._activeTarget= null;
    this._scrollHeight= 0;

    $(this._scrollElement).on(Event$8.SCROLL, function (event) { return this$1._process(event); });

    this.refresh();
    this._process();
  };

  var staticAccessors$7 = { VERSION: { configurable: true },Default: { configurable: true } };

  // Getters

  staticAccessors$7.VERSION.get = function () {
    return VERSION$8
  };

  staticAccessors$7.Default.get = function () {
    return Default$6
  };

  // Public

  ScrollSpy.prototype.refresh = function refresh () {
      var this$1 = this;

    var autoMethod = this._scrollElement === this._scrollElement.window
      ? OffsetMethod.OFFSET : OffsetMethod.POSITION;

    var offsetMethod = this._config.method === 'auto'
      ? autoMethod : this._config.method;

    var offsetBase = offsetMethod === OffsetMethod.POSITION
      ? this._getScrollTop() : 0;

    this._offsets = [];
    this._targets = [];

    this._scrollHeight = this._getScrollHeight();

    var targets = [].slice.call(document.querySelectorAll(this._selector));

    targets
      .map(function (element) {
        var target;
        var targetSelector = Util.getSelectorFromElement(element);

        if (targetSelector) {
          target = document.querySelector(targetSelector);
        }

        if (target) {
          var targetBCR = target.getBoundingClientRect();
          if (targetBCR.width || targetBCR.height) {
            // TODO (fat): remove sketch reliance on jQuery position/offset
            return [
              $(target)[offsetMethod]().top + offsetBase,
              targetSelector
            ]
          }
        }
        return null
      })
      .filter(function (item) { return item; })
      .sort(function (a, b) { return a[0] - b[0]; })
      .forEach(function (item) {
        this$1._offsets.push(item[0]);
        this$1._targets.push(item[1]);
      });
  };

  ScrollSpy.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY$8);
    $(this._scrollElement).off(EVENT_KEY$8);

    this._element     = null;
    this._scrollElement = null;
    this._config      = null;
    this._selector    = null;
    this._offsets     = null;
    this._targets     = null;
    this._activeTarget= null;
    this._scrollHeight= null;
  };

  // Private

  ScrollSpy.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, Default$6,
      typeof config === 'object' && config ? config : {});

    if (typeof config.target !== 'string') {
      var id = $(config.target).attr('id');
      if (!id) {
        id = Util.getUID(NAME$8);
        $(config.target).attr('id', id);
      }
      config.target = "#" + id;
    }

    Util.typeCheckConfig(NAME$8, config, DefaultType$6);

    return config
  };

  ScrollSpy.prototype._getScrollTop = function _getScrollTop () {
    return this._scrollElement === window
      ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop
  };

  ScrollSpy.prototype._getScrollHeight = function _getScrollHeight () {
    return this._scrollElement.scrollHeight || Math.max(
      document.body.scrollHeight,
      document.documentElement.scrollHeight
    )
  };

  ScrollSpy.prototype._getOffsetHeight = function _getOffsetHeight () {
    return this._scrollElement === window
      ? window.innerHeight : this._scrollElement.getBoundingClientRect().height
  };

  ScrollSpy.prototype._process = function _process () {
    var scrollTop  = this._getScrollTop() + this._config.offset;
    var scrollHeight = this._getScrollHeight();
    var maxScroll  = this._config.offset +
      scrollHeight -
      this._getOffsetHeight();

    if (this._scrollHeight !== scrollHeight) {
      this.refresh();
    }

    if (scrollTop >= maxScroll) {
      var target = this._targets[this._targets.length - 1];

      if (this._activeTarget !== target) {
        this._activate(target);
      }
      return
    }

    if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
      this._activeTarget = null;
      this._clear();
      return
    }

    var offsetLength = this._offsets.length;
    for (var i = offsetLength; i--;) {
      var isActiveTarget = this._activeTarget !== this._targets[i] &&
          scrollTop >= this._offsets[i] &&
          (typeof this._offsets[i + 1] === 'undefined' ||
              scrollTop < this._offsets[i + 1]);

      if (isActiveTarget) {
        this._activate(this._targets[i]);
      }
    }
  };

  ScrollSpy.prototype._activate = function _activate (target) {
    this._activeTarget = target;

    this._clear();

    var queries = this._selector
      .split(',')
      .map(function (selector) { return (selector + "[data-target=\"" + target + "\"]," + selector + "[href=\"" + target + "\"]"); });

    var $link = $([].slice.call(document.querySelectorAll(queries.join(','))));

    if ($link.hasClass(ClassName$8.DROPDOWN_ITEM)) {
      $link.closest(Selector$8.DROPDOWN).find(Selector$8.DROPDOWN_TOGGLE).addClass(ClassName$8.ACTIVE);
      $link.addClass(ClassName$8.ACTIVE);
    } else {
      // Set triggered link as active
      $link.addClass(ClassName$8.ACTIVE);
      // Set triggered links parents as active
      // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
      $link.parents(Selector$8.NAV_LIST_GROUP).prev(((Selector$8.NAV_LINKS) + ", " + (Selector$8.LIST_ITEMS))).addClass(ClassName$8.ACTIVE);
      // Handle special case when .nav-link is inside .nav-item
      $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_ITEMS).children(Selector$8.NAV_LINKS).addClass(ClassName$8.ACTIVE);
    }

    $(this._scrollElement).trigger(Event$8.ACTIVATE, {
      relatedTarget: target
    });
  };

  ScrollSpy.prototype._clear = function _clear () {
    [].slice.call(document.querySelectorAll(this._selector))
      .filter(function (node) { return node.classList.contains(ClassName$8.ACTIVE); })
      .forEach(function (node) { return node.classList.remove(ClassName$8.ACTIVE); });
  };

  // Static

  ScrollSpy._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var data = $(this).data(DATA_KEY$8);
      var _config = typeof config === 'object' && config;

      if (!data) {
        data = new ScrollSpy(this, _config);
        $(this).data(DATA_KEY$8, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config]();
      }
    })
  };

  Object.defineProperties( ScrollSpy, staticAccessors$7 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(window).on(Event$8.LOAD_DATA_API, function () {
    var scrollSpys = [].slice.call(document.querySelectorAll(Selector$8.DATA_SPY));
    var scrollSpysLength = scrollSpys.length;

    for (var i = scrollSpysLength; i--;) {
      var $spy = $(scrollSpys[i]);
      ScrollSpy._jQueryInterface.call($spy, $spy.data());
    }
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$8] = ScrollSpy._jQueryInterface;
  $.fn[NAME$8].Constructor = ScrollSpy;
  $.fn[NAME$8].noConflict = function () {
    $.fn[NAME$8] = JQUERY_NO_CONFLICT$8;
    return ScrollSpy._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): tab.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$9               = 'tab';
  var VERSION$9            = '4.4.1';
  var DATA_KEY$9           = 'bs.tab';
  var EVENT_KEY$9          = "." + DATA_KEY$9;
  var DATA_API_KEY$7       = '.data-api';
  var JQUERY_NO_CONFLICT$9 = $.fn[NAME$9];

  var Event$9 = {
    HIDE           : ("hide" + EVENT_KEY$9),
    HIDDEN         : ("hidden" + EVENT_KEY$9),
    SHOW           : ("show" + EVENT_KEY$9),
    SHOWN          : ("shown" + EVENT_KEY$9),
    CLICK_DATA_API : ("click" + EVENT_KEY$9 + DATA_API_KEY$7)
  };

  var ClassName$9 = {
    DROPDOWN_MENU : 'dropdown-menu',
    ACTIVE        : 'active',
    DISABLED      : 'disabled',
    FADE          : 'fade',
    SHOW          : 'show'
  };

  var Selector$9 = {
    DROPDOWN              : '.dropdown',
    NAV_LIST_GROUP        : '.nav, .list-group',
    ACTIVE                : '.active',
    ACTIVE_UL             : '> li > .active',
    DATA_TOGGLE           : '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
    DROPDOWN_TOGGLE       : '.dropdown-toggle',
    DROPDOWN_ACTIVE_CHILD : '> .dropdown-menu .active'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tab = function Tab(element) {
    this._element = element;
  };

  var staticAccessors$8 = { VERSION: { configurable: true } };

  // Getters

  staticAccessors$8.VERSION.get = function () {
    return VERSION$9
  };

  // Public

  Tab.prototype.show = function show () {
      var this$1 = this;

    if (this._element.parentNode &&
        this._element.parentNode.nodeType === Node.ELEMENT_NODE &&
        $(this._element).hasClass(ClassName$9.ACTIVE) ||
        $(this._element).hasClass(ClassName$9.DISABLED)) {
      return
    }

    var target;
    var previous;
    var listElement = $(this._element).closest(Selector$9.NAV_LIST_GROUP)[0];
    var selector = Util.getSelectorFromElement(this._element);

    if (listElement) {
      var itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? Selector$9.ACTIVE_UL : Selector$9.ACTIVE;
      previous = $.makeArray($(listElement).find(itemSelector));
      previous = previous[previous.length - 1];
    }

    var hideEvent = $.Event(Event$9.HIDE, {
      relatedTarget: this._element
    });

    var showEvent = $.Event(Event$9.SHOW, {
      relatedTarget: previous
    });

    if (previous) {
      $(previous).trigger(hideEvent);
    }

    $(this._element).trigger(showEvent);

    if (showEvent.isDefaultPrevented() ||
        hideEvent.isDefaultPrevented()) {
      return
    }

    if (selector) {
      target = document.querySelector(selector);
    }

    this._activate(
      this._element,
      listElement
    );

    var complete = function () {
      var hiddenEvent = $.Event(Event$9.HIDDEN, {
        relatedTarget: this$1._element
      });

      var shownEvent = $.Event(Event$9.SHOWN, {
        relatedTarget: previous
      });

      $(previous).trigger(hiddenEvent);
      $(this$1._element).trigger(shownEvent);
    };

    if (target) {
      this._activate(target, target.parentNode, complete);
    } else {
      complete();
    }
  };

  Tab.prototype.dispose = function dispose () {
    $.removeData(this._element, DATA_KEY$9);
    this._element = null;
  };

  // Private

  Tab.prototype._activate = function _activate (element, container, callback) {
      var this$1 = this;

    var activeElements = container && (container.nodeName === 'UL' || container.nodeName === 'OL')
      ? $(container).find(Selector$9.ACTIVE_UL)
      : $(container).children(Selector$9.ACTIVE);

    var active = activeElements[0];
    var isTransitioning = callback && (active && $(active).hasClass(ClassName$9.FADE));
    var complete = function () { return this$1._transitionComplete(
      element,
      active,
      callback
    ); };

    if (active && isTransitioning) {
      var transitionDuration = Util.getTransitionDurationFromElement(active);

      $(active)
        .removeClass(ClassName$9.SHOW)
        .one(Util.TRANSITION_END, complete)
        .emulateTransitionEnd(transitionDuration);
    } else {
      complete();
    }
  };

  Tab.prototype._transitionComplete = function _transitionComplete (element, active, callback) {
    if (active) {
      $(active).removeClass(ClassName$9.ACTIVE);

      var dropdownChild = $(active.parentNode).find(
        Selector$9.DROPDOWN_ACTIVE_CHILD
      )[0];

      if (dropdownChild) {
        $(dropdownChild).removeClass(ClassName$9.ACTIVE);
      }

      if (active.getAttribute('role') === 'tab') {
        active.setAttribute('aria-selected', false);
      }
    }

    $(element).addClass(ClassName$9.ACTIVE);
    if (element.getAttribute('role') === 'tab') {
      element.setAttribute('aria-selected', true);
    }

    Util.reflow(element);

    if (element.classList.contains(ClassName$9.FADE)) {
      element.classList.add(ClassName$9.SHOW);
    }

    if (element.parentNode && $(element.parentNode).hasClass(ClassName$9.DROPDOWN_MENU)) {
      var dropdownElement = $(element).closest(Selector$9.DROPDOWN)[0];

      if (dropdownElement) {
        var dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector$9.DROPDOWN_TOGGLE));

        $(dropdownToggleList).addClass(ClassName$9.ACTIVE);
      }

      element.setAttribute('aria-expanded', true);
    }

    if (callback) {
      callback();
    }
  };

  // Static

  Tab._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var $this = $(this);
      var data = $this.data(DATA_KEY$9);

      if (!data) {
        data = new Tab(this);
        $this.data(DATA_KEY$9, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }
        data[config]();
      }
    })
  };

  Object.defineProperties( Tab, staticAccessors$8 );

  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */

  $(document)
    .on(Event$9.CLICK_DATA_API, Selector$9.DATA_TOGGLE, function (event) {
      event.preventDefault();
      Tab._jQueryInterface.call($(this), 'show');
    });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$9] = Tab._jQueryInterface;
  $.fn[NAME$9].Constructor = Tab;
  $.fn[NAME$9].noConflict = function () {
    $.fn[NAME$9] = JQUERY_NO_CONFLICT$9;
    return Tab._jQueryInterface
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.4.1): toast.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$a               = 'toast';
  var VERSION$a            = '4.4.1';
  var DATA_KEY$a           = 'bs.toast';
  var EVENT_KEY$a          = "." + DATA_KEY$a;
  var JQUERY_NO_CONFLICT$a = $.fn[NAME$a];

  var Event$a = {
    CLICK_DISMISS : ("click.dismiss" + EVENT_KEY$a),
    HIDE          : ("hide" + EVENT_KEY$a),
    HIDDEN        : ("hidden" + EVENT_KEY$a),
    SHOW          : ("show" + EVENT_KEY$a),
    SHOWN         : ("shown" + EVENT_KEY$a)
  };

  var ClassName$a = {
    FADE    : 'fade',
    HIDE    : 'hide',
    SHOW    : 'show',
    SHOWING : 'showing'
  };

  var DefaultType$7 = {
    animation : 'boolean',
    autohide  : 'boolean',
    delay     : 'number'
  };

  var Default$7 = {
    animation : true,
    autohide  : true,
    delay     : 500
  };

  var Selector$a = {
    DATA_DISMISS : '[data-dismiss="toast"]'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Toast = function Toast(element, config) {
    this._element = element;
    this._config= this._getConfig(config);
    this._timeout = null;
    this._setListeners();
  };

  var staticAccessors$9 = { VERSION: { configurable: true },DefaultType: { configurable: true },Default: { configurable: true } };

  // Getters

  staticAccessors$9.VERSION.get = function () {
    return VERSION$a
  };

  staticAccessors$9.DefaultType.get = function () {
    return DefaultType$7
  };

  staticAccessors$9.Default.get = function () {
    return Default$7
  };

  // Public

  Toast.prototype.show = function show () {
      var this$1 = this;

    var showEvent = $.Event(Event$a.SHOW);

    $(this._element).trigger(showEvent);
    if (showEvent.isDefaultPrevented()) {
      return
    }

    if (this._config.animation) {
      this._element.classList.add(ClassName$a.FADE);
    }

    var complete = function () {
      this$1._element.classList.remove(ClassName$a.SHOWING);
      this$1._element.classList.add(ClassName$a.SHOW);

      $(this$1._element).trigger(Event$a.SHOWN);

      if (this$1._config.autohide) {
        this$1._timeout = setTimeout(function () {
          this$1.hide();
        }, this$1._config.delay);
      }
    };

    this._element.classList.remove(ClassName$a.HIDE);
    Util.reflow(this._element);
    this._element.classList.add(ClassName$a.SHOWING);
    if (this._config.animation) {
      var transitionDuration = Util.getTransitionDurationFromElement(this._element);

      $(this._element)
        .one(Util.TRANSITION_END, complete)
        .emulateTransitionEnd(transitionDuration);
    } else {
      complete();
    }
  };

  Toast.prototype.hide = function hide () {
    if (!this._element.classList.contains(ClassName$a.SHOW)) {
      return
    }

    var hideEvent = $.Event(Event$a.HIDE);

    $(this._element).trigger(hideEvent);
    if (hideEvent.isDefaultPrevented()) {
      return
    }

    this._close();
  };

  Toast.prototype.dispose = function dispose () {
    clearTimeout(this._timeout);
    this._timeout = null;

    if (this._element.classList.contains(ClassName$a.SHOW)) {
      this._element.classList.remove(ClassName$a.SHOW);
    }

    $(this._element).off(Event$a.CLICK_DISMISS);

    $.removeData(this._element, DATA_KEY$a);
    this._element = null;
    this._config= null;
  };

  // Private

  Toast.prototype._getConfig = function _getConfig (config) {
    config = Object.assign({}, Default$7,
      $(this._element).data(),
      typeof config === 'object' && config ? config : {});

    Util.typeCheckConfig(
      NAME$a,
      config,
      this.constructor.DefaultType
    );

    return config
  };

  Toast.prototype._setListeners = function _setListeners () {
      var this$1 = this;

    $(this._element).on(
      Event$a.CLICK_DISMISS,
      Selector$a.DATA_DISMISS,
      function () { return this$1.hide(); }
    );
  };

  Toast.prototype._close = function _close () {
      var this$1 = this;

    var complete = function () {
      this$1._element.classList.add(ClassName$a.HIDE);
      $(this$1._element).trigger(Event$a.HIDDEN);
    };

    this._element.classList.remove(ClassName$a.SHOW);
    if (this._config.animation) {
      var transitionDuration = Util.getTransitionDurationFromElement(this._element);

      $(this._element)
        .one(Util.TRANSITION_END, complete)
        .emulateTransitionEnd(transitionDuration);
    } else {
      complete();
    }
  };

  // Static

  Toast._jQueryInterface = function _jQueryInterface (config) {
    return this.each(function () {
      var $element = $(this);
      var data     = $element.data(DATA_KEY$a);
      var _config= typeof config === 'object' && config;

      if (!data) {
        data = new Toast(this, _config);
        $element.data(DATA_KEY$a, data);
      }

      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(("No method named \"" + config + "\""))
        }

        data[config](this);
      }
    })
  };

  Object.defineProperties( Toast, staticAccessors$9 );

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME$a]             = Toast._jQueryInterface;
  $.fn[NAME$a].Constructor = Toast;
  $.fn[NAME$a].noConflict  = function () {
    $.fn[NAME$a] = JQUERY_NO_CONFLICT$a;
    return Toast._jQueryInterface
  };

  exports.Alert = Alert;
  exports.Button = Button;
  exports.Carousel = Carousel;
  exports.Collapse = Collapse;
  exports.Dropdown = Dropdown;
  exports.Modal = Modal;
  exports.Popover = Popover;
  exports.Scrollspy = ScrollSpy;
  exports.Tab = Tab;
  exports.Toast = Toast;
  exports.Tooltip = Tooltip;
  exports.Util = Util;

  Object.defineProperty(exports, '__esModule', { value: true });

}));
//# sourceMappingURL=bootstrap.bundle.js.map
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