grunt

4 files changed, 9 insertions, 7 deletions

diff --git a/js/dist/carousel.js b/js/dist/carousel.js
index 62ff319d9..6e4269245 100644
--- a/js/dist/carousel.js
+++ b/js/dist/carousel.js
@@ -129,7 +129,7 @@ var Carousel = function ($) {
       if (this._isSliding) {
         throw new Error('Carousel is sliding');
       }
-      this._slide(Direction.PREVIOUS);
+      this._slide(Direction.PREV);
     };
 
     Carousel.prototype.pause = function pause(event) {
@@ -185,7 +185,7 @@ var Carousel = function ($) {
         return;
       }
 
-      var direction = index > activeIndex ? Direction.NEXT : Direction.PREVIOUS;
+      var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;
 
       this._slide(direction, this._items[index]);
     };
@@ -256,7 +256,7 @@ var Carousel = function ($) {
 
     Carousel.prototype._getItemByDirection = function _getItemByDirection(direction, activeElement) {
       var isNextDirection = direction === Direction.NEXT;
-      var isPrevDirection = direction === Direction.PREVIOUS;
+      var isPrevDirection = direction === Direction.PREV;
       var activeIndex = this._getItemIndex(activeElement);
       var lastItemIndex = this._items.length - 1;
       var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
@@ -265,7 +265,7 @@ var Carousel = function ($) {
         return activeElement;
       }
 
-      var delta = direction === Direction.PREVIOUS ? -1 : 1;
+      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];
diff --git a/js/dist/carousel.js.map b/js/dist/carousel.js.map
index e03cd1d0a..4edaef0b7 100644
--- a/js/dist/carousel.js.map
+++ b/js/dist/carousel.js.map
@@ -1 +1 @@
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Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-alpha.6): carousel.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst Carousel = (($) => {\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Constants\n   * ------------------------------------------------------------------------\n   */\n\n  const NAME                = 'carousel'\n  const VERSION             = '4.0.0-alpha.6'\n  const DATA_KEY            = 'bs.carousel'\n  const EVENT_KEY           = `.${DATA_KEY}`\n  const DATA_API_KEY        = '.data-api'\n  const JQUERY_NO_CONFLICT  = $.fn[NAME]\n  const TRANSITION_DURATION = 600\n  const ARROW_LEFT_KEYCODE  = 37 // KeyboardEvent.which value for left arrow key\n  const ARROW_RIGHT_KEYCODE = 39 // KeyboardEvent.which value for right arrow key\n\n  const Default = {\n    interval : 5000,\n    keyboard : true,\n    slide    : false,\n    pause    : 'hover',\n    wrap     : true\n  }\n\n  const DefaultType = {\n    interval : '(number|boolean)',\n    keyboard : 'boolean',\n    slide    : '(boolean|string)',\n    pause    : '(string|boolean)',\n    wrap     : 'boolean'\n  }\n\n  const Direction = {\n    NEXT     : 'next',\n    PREV     : 'prev',\n    LEFT     : 'left',\n    RIGHT    : 'right'\n  }\n\n  const Event = {\n    SLIDE          : `slide${EVENT_KEY}`,\n    SLID           : `slid${EVENT_KEY}`,\n    KEYDOWN        : `keydown${EVENT_KEY}`,\n    MOUSEENTER     : `mouseenter${EVENT_KEY}`,\n    MOUSELEAVE     : `mouseleave${EVENT_KEY}`,\n    LOAD_DATA_API  : `load${EVENT_KEY}${DATA_API_KEY}`,\n    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`\n  }\n\n  const ClassName = {\n    CAROUSEL : 'carousel',\n    ACTIVE   : 'active',\n    SLIDE    : 'slide',\n    RIGHT    : 'carousel-item-right',\n    LEFT     : 'carousel-item-left',\n    NEXT     : 'carousel-item-next',\n    PREV     : 'carousel-item-prev',\n    ITEM     : 'carousel-item'\n  }\n\n  const Selector = {\n    ACTIVE      : '.active',\n    ACTIVE_ITEM : '.active.carousel-item',\n    ITEM        : '.carousel-item',\n    NEXT_PREV   : '.carousel-item-next, .carousel-item-prev',\n    INDICATORS  : '.carousel-indicators',\n    DATA_SLIDE  : '[data-slide], [data-slide-to]',\n    DATA_RIDE   : '[data-ride=\"carousel\"]'\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Class Definition\n   * ------------------------------------------------------------------------\n   */\n\n  class Carousel {\n\n    constructor(element, config) {\n      this._items             = null\n      this._interval          = null\n      this._activeElement     = null\n\n      this._isPaused          = false\n      this._isSliding         = false\n\n      this._config            = this._getConfig(config)\n      this._element           = $(element)[0]\n      this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0]\n\n      this._addEventListeners()\n    }\n\n\n    // getters\n\n    static get VERSION() {\n      return VERSION\n    }\n\n    static get Default() {\n      return Default\n    }\n\n\n    // public\n\n    next() {\n      if (this._isSliding) {\n        throw new Error('Carousel is sliding')\n      }\n      this._slide(Direction.NEXT)\n    }\n\n    nextWhenVisible() {\n      // Don't call next when the page isn't visible\n      if (!document.hidden) {\n        this.next()\n      }\n    }\n\n    prev() {\n      if (this._isSliding) {\n        throw new Error('Carousel is sliding')\n      }\n      this._slide(Direction.PREVIOUS)\n    }\n\n    pause(event) {\n      if (!event) {\n        this._isPaused = true\n      }\n\n      if ($(this._element).find(Selector.NEXT_PREV)[0] &&\n        Util.supportsTransitionEnd()) {\n        Util.triggerTransitionEnd(this._element)\n        this.cycle(true)\n      }\n\n      clearInterval(this._interval)\n      this._interval = null\n    }\n\n    cycle(event) {\n      if (!event) {\n        this._isPaused = false\n      }\n\n      if (this._interval) {\n        clearInterval(this._interval)\n        this._interval = null\n      }\n\n      if (this._config.interval && !this._isPaused) {\n        this._interval = setInterval(\n          (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),\n          this._config.interval\n        )\n      }\n    }\n\n    to(index) {\n      this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]\n\n      const activeIndex = this._getItemIndex(this._activeElement)\n\n      if (index > this._items.length - 1 || index < 0) {\n        return\n      }\n\n      if (this._isSliding) {\n        $(this._element).one(Event.SLID, () => this.to(index))\n        return\n      }\n\n      if (activeIndex === index) {\n        this.pause()\n        this.cycle()\n        return\n      }\n\n      const direction = index > activeIndex ?\n        Direction.NEXT :\n        Direction.PREVIOUS\n\n      this._slide(direction, this._items[index])\n    }\n\n    dispose() {\n      $(this._element).off(EVENT_KEY)\n      $.removeData(this._element, DATA_KEY)\n\n      this._items             = null\n      this._config            = null\n      this._element           = null\n      this._interval          = null\n      this._isPaused          = null\n      this._isSliding         = null\n      this._activeElement     = null\n      this._indicatorsElement = null\n    }\n\n\n    // private\n\n    _getConfig(config) {\n      config = $.extend({}, Default, config)\n      Util.typeCheckConfig(NAME, config, DefaultType)\n      return config\n    }\n\n    _addEventListeners() {\n      if (this._config.keyboard) {\n        $(this._element)\n          .on(Event.KEYDOWN, (event) => this._keydown(event))\n      }\n\n      if (this._config.pause === 'hover' &&\n        !('ontouchstart' in document.documentElement)) {\n        $(this._element)\n          .on(Event.MOUSEENTER, (event) => this.pause(event))\n          .on(Event.MOUSELEAVE, (event) => this.cycle(event))\n      }\n    }\n\n    _keydown(event) {\n      if (/input|textarea/i.test(event.target.tagName)) {\n        return\n      }\n\n      switch (event.which) {\n        case ARROW_LEFT_KEYCODE:\n          event.preventDefault()\n          this.prev()\n          break\n        case ARROW_RIGHT_KEYCODE:\n          event.preventDefault()\n          this.next()\n          break\n        default:\n          return\n      }\n    }\n\n    _getItemIndex(element) {\n      this._items = $.makeArray($(element).parent().find(Selector.ITEM))\n      return this._items.indexOf(element)\n    }\n\n    _getItemByDirection(direction, activeElement) {\n      const isNextDirection = direction === Direction.NEXT\n      const isPrevDirection = direction === Direction.PREVIOUS\n      const activeIndex     = this._getItemIndex(activeElement)\n      const lastItemIndex   = this._items.length - 1\n      const isGoingToWrap   = isPrevDirection && activeIndex === 0 ||\n                              isNextDirection && activeIndex === lastItemIndex\n\n      if (isGoingToWrap && !this._config.wrap) {\n        return activeElement\n      }\n\n      const delta     = direction === Direction.PREVIOUS ? -1 : 1\n      const itemIndex = (activeIndex + delta) % this._items.length\n\n      return itemIndex === -1 ?\n        this._items[this._items.length - 1] : this._items[itemIndex]\n    }\n\n\n    _triggerSlideEvent(relatedTarget, eventDirectionName) {\n      const slideEvent = $.Event(Event.SLIDE, {\n        relatedTarget,\n        direction: eventDirectionName\n      })\n\n      $(this._element).trigger(slideEvent)\n\n      return slideEvent\n    }\n\n    _setActiveIndicatorElement(element) {\n      if (this._indicatorsElement) {\n        $(this._indicatorsElement)\n          .find(Selector.ACTIVE)\n          .removeClass(ClassName.ACTIVE)\n\n        const nextIndicator = this._indicatorsElement.children[\n          this._getItemIndex(element)\n        ]\n\n        if (nextIndicator) {\n          $(nextIndicator).addClass(ClassName.ACTIVE)\n        }\n      }\n    }\n\n    _slide(direction, element) {\n      const activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]\n      const nextElement   = element || activeElement &&\n        this._getItemByDirection(direction, activeElement)\n\n      const isCycling = Boolean(this._interval)\n\n      let directionalClassName\n      let orderClassName\n      let eventDirectionName\n\n      if (direction === Direction.NEXT) {\n        directionalClassName = ClassName.LEFT\n        orderClassName = ClassName.NEXT\n        eventDirectionName = Direction.LEFT\n      } else {\n        directionalClassName = ClassName.RIGHT\n        orderClassName = ClassName.PREV\n        eventDirectionName = Direction.RIGHT\n      }\n\n      if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {\n        this._isSliding = false\n        return\n      }\n\n      const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)\n      if (slideEvent.isDefaultPrevented()) {\n        return\n      }\n\n      if (!activeElement || !nextElement) {\n        // some weirdness is happening, so we bail\n        return\n      }\n\n      this._isSliding = true\n\n      if (isCycling) {\n        this.pause()\n      }\n\n      this._setActiveIndicatorElement(nextElement)\n\n      const slidEvent = $.Event(Event.SLID, {\n        relatedTarget: nextElement,\n        direction: eventDirectionName\n      })\n\n      if (Util.supportsTransitionEnd() &&\n        $(this._element).hasClass(ClassName.SLIDE)) {\n\n        $(nextElement).addClass(orderClassName)\n\n        Util.reflow(nextElement)\n\n        $(activeElement).addClass(directionalClassName)\n        $(nextElement).addClass(directionalClassName)\n\n        $(activeElement)\n          .one(Util.TRANSITION_END, () => {\n            $(nextElement)\n              .removeClass(`${directionalClassName} ${orderClassName}`)\n              .addClass(ClassName.ACTIVE)\n\n            $(activeElement).removeClass(`${ClassName.ACTIVE} ${orderClassName} ${directionalClassName}`)\n\n            this._isSliding = false\n\n            setTimeout(() => $(this._element).trigger(slidEvent), 0)\n\n          })\n          .emulateTransitionEnd(TRANSITION_DURATION)\n\n      } else {\n        $(activeElement).removeClass(ClassName.ACTIVE)\n        $(nextElement).addClass(ClassName.ACTIVE)\n\n        this._isSliding = false\n        $(this._element).trigger(slidEvent)\n      }\n\n      if (isCycling) {\n        this.cycle()\n      }\n    }\n\n\n    // static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n        let data      = $(this).data(DATA_KEY)\n        const _config = $.extend({}, Default, $(this).data())\n\n        if (typeof config === 'object') {\n          $.extend(_config, config)\n        }\n\n        const action = typeof config === 'string' ? config : _config.slide\n\n        if (!data) {\n          data = new Carousel(this, _config)\n          $(this).data(DATA_KEY, data)\n        }\n\n        if (typeof config === 'number') {\n          data.to(config)\n        } else if (typeof action === 'string') {\n          if (data[action] === undefined) {\n            throw new Error(`No method named \"${action}\"`)\n          }\n          data[action]()\n        } else if (_config.interval) {\n          data.pause()\n          data.cycle()\n        }\n      })\n    }\n\n    static _dataApiClickHandler(event) {\n      const selector = Util.getSelectorFromElement(this)\n\n      if (!selector) {\n        return\n      }\n\n      const target = $(selector)[0]\n\n      if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {\n        return\n      }\n\n      const config     = $.extend({}, $(target).data(), $(this).data())\n      const slideIndex = this.getAttribute('data-slide-to')\n\n      if (slideIndex) {\n        config.interval = false\n      }\n\n      Carousel._jQueryInterface.call($(target), config)\n\n      if (slideIndex) {\n        $(target).data(DATA_KEY).to(slideIndex)\n      }\n\n      event.preventDefault()\n    }\n\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Data Api implementation\n   * ------------------------------------------------------------------------\n   */\n\n  $(document)\n    .on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)\n\n  $(window).on(Event.LOAD_DATA_API, () => {\n    $(Selector.DATA_RIDE).each(function () {\n      const $carousel = $(this)\n      Carousel._jQueryInterface.call($carousel, $carousel.data())\n    })\n  })\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * jQuery\n   * ------------------------------------------------------------------------\n   */\n\n  $.fn[NAME]             = Carousel._jQueryInterface\n  $.fn[NAME].Constructor = Carousel\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return Carousel._jQueryInterface\n  }\n\n  return Carousel\n\n})(jQuery)\n\nexport default Carousel\n"]}
\ No newline at end of file
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Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-alpha.6): carousel.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst Carousel = (($) => {\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Constants\n   * ------------------------------------------------------------------------\n   */\n\n  const NAME                = 'carousel'\n  const VERSION             = '4.0.0-alpha.6'\n  const DATA_KEY            = 'bs.carousel'\n  const EVENT_KEY           = `.${DATA_KEY}`\n  const DATA_API_KEY        = '.data-api'\n  const JQUERY_NO_CONFLICT  = $.fn[NAME]\n  const TRANSITION_DURATION = 600\n  const ARROW_LEFT_KEYCODE  = 37 // KeyboardEvent.which value for left arrow key\n  const ARROW_RIGHT_KEYCODE = 39 // KeyboardEvent.which value for right arrow key\n\n  const Default = {\n    interval : 5000,\n    keyboard : true,\n    slide    : false,\n    pause    : 'hover',\n    wrap     : true\n  }\n\n  const DefaultType = {\n    interval : '(number|boolean)',\n    keyboard : 'boolean',\n    slide    : '(boolean|string)',\n    pause    : '(string|boolean)',\n    wrap     : 'boolean'\n  }\n\n  const Direction = {\n    NEXT     : 'next',\n    PREV     : 'prev',\n    LEFT     : 'left',\n    RIGHT    : 'right'\n  }\n\n  const Event = {\n    SLIDE          : `slide${EVENT_KEY}`,\n    SLID           : `slid${EVENT_KEY}`,\n    KEYDOWN        : `keydown${EVENT_KEY}`,\n    MOUSEENTER     : `mouseenter${EVENT_KEY}`,\n    MOUSELEAVE     : `mouseleave${EVENT_KEY}`,\n    LOAD_DATA_API  : `load${EVENT_KEY}${DATA_API_KEY}`,\n    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`\n  }\n\n  const ClassName = {\n    CAROUSEL : 'carousel',\n    ACTIVE   : 'active',\n    SLIDE    : 'slide',\n    RIGHT    : 'carousel-item-right',\n    LEFT     : 'carousel-item-left',\n    NEXT     : 'carousel-item-next',\n    PREV     : 'carousel-item-prev',\n    ITEM     : 'carousel-item'\n  }\n\n  const Selector = {\n    ACTIVE      : '.active',\n    ACTIVE_ITEM : '.active.carousel-item',\n    ITEM        : '.carousel-item',\n    NEXT_PREV   : '.carousel-item-next, .carousel-item-prev',\n    INDICATORS  : '.carousel-indicators',\n    DATA_SLIDE  : '[data-slide], [data-slide-to]',\n    DATA_RIDE   : '[data-ride=\"carousel\"]'\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Class Definition\n   * ------------------------------------------------------------------------\n   */\n\n  class Carousel {\n\n    constructor(element, config) {\n      this._items             = null\n      this._interval          = null\n      this._activeElement     = null\n\n      this._isPaused          = false\n      this._isSliding         = false\n\n      this._config            = this._getConfig(config)\n      this._element           = $(element)[0]\n      this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0]\n\n      this._addEventListeners()\n    }\n\n\n    // getters\n\n    static get VERSION() {\n      return VERSION\n    }\n\n    static get Default() {\n      return Default\n    }\n\n\n    // public\n\n    next() {\n      if (this._isSliding) {\n        throw new Error('Carousel is sliding')\n      }\n      this._slide(Direction.NEXT)\n    }\n\n    nextWhenVisible() {\n      // Don't call next when the page isn't visible\n      if (!document.hidden) {\n        this.next()\n      }\n    }\n\n    prev() {\n      if (this._isSliding) {\n        throw new Error('Carousel is sliding')\n      }\n      this._slide(Direction.PREV)\n    }\n\n    pause(event) {\n      if (!event) {\n        this._isPaused = true\n      }\n\n      if ($(this._element).find(Selector.NEXT_PREV)[0] &&\n        Util.supportsTransitionEnd()) {\n        Util.triggerTransitionEnd(this._element)\n        this.cycle(true)\n      }\n\n      clearInterval(this._interval)\n      this._interval = null\n    }\n\n    cycle(event) {\n      if (!event) {\n        this._isPaused = false\n      }\n\n      if (this._interval) {\n        clearInterval(this._interval)\n        this._interval = null\n      }\n\n      if (this._config.interval && !this._isPaused) {\n        this._interval = setInterval(\n          (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),\n          this._config.interval\n        )\n      }\n    }\n\n    to(index) {\n      this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]\n\n      const activeIndex = this._getItemIndex(this._activeElement)\n\n      if (index > this._items.length - 1 || index < 0) {\n        return\n      }\n\n      if (this._isSliding) {\n        $(this._element).one(Event.SLID, () => this.to(index))\n        return\n      }\n\n      if (activeIndex === index) {\n        this.pause()\n        this.cycle()\n        return\n      }\n\n      const direction = index > activeIndex ?\n        Direction.NEXT :\n        Direction.PREV\n\n      this._slide(direction, this._items[index])\n    }\n\n    dispose() {\n      $(this._element).off(EVENT_KEY)\n      $.removeData(this._element, DATA_KEY)\n\n      this._items             = null\n      this._config            = null\n      this._element           = null\n      this._interval          = null\n      this._isPaused          = null\n      this._isSliding         = null\n      this._activeElement     = null\n      this._indicatorsElement = null\n    }\n\n\n    // private\n\n    _getConfig(config) {\n      config = $.extend({}, Default, config)\n      Util.typeCheckConfig(NAME, config, DefaultType)\n      return config\n    }\n\n    _addEventListeners() {\n      if (this._config.keyboard) {\n        $(this._element)\n          .on(Event.KEYDOWN, (event) => this._keydown(event))\n      }\n\n      if (this._config.pause === 'hover' &&\n        !('ontouchstart' in document.documentElement)) {\n        $(this._element)\n          .on(Event.MOUSEENTER, (event) => this.pause(event))\n          .on(Event.MOUSELEAVE, (event) => this.cycle(event))\n      }\n    }\n\n    _keydown(event) {\n      if (/input|textarea/i.test(event.target.tagName)) {\n        return\n      }\n\n      switch (event.which) {\n        case ARROW_LEFT_KEYCODE:\n          event.preventDefault()\n          this.prev()\n          break\n        case ARROW_RIGHT_KEYCODE:\n          event.preventDefault()\n          this.next()\n          break\n        default:\n          return\n      }\n    }\n\n    _getItemIndex(element) {\n      this._items = $.makeArray($(element).parent().find(Selector.ITEM))\n      return this._items.indexOf(element)\n    }\n\n    _getItemByDirection(direction, activeElement) {\n      const isNextDirection = direction === Direction.NEXT\n      const isPrevDirection = direction === Direction.PREV\n      const activeIndex     = this._getItemIndex(activeElement)\n      const lastItemIndex   = this._items.length - 1\n      const isGoingToWrap   = isPrevDirection && activeIndex === 0 ||\n                              isNextDirection && activeIndex === lastItemIndex\n\n      if (isGoingToWrap && !this._config.wrap) {\n        return activeElement\n      }\n\n      const delta     = direction === Direction.PREV ? -1 : 1\n      const itemIndex = (activeIndex + delta) % this._items.length\n\n      return itemIndex === -1 ?\n        this._items[this._items.length - 1] : this._items[itemIndex]\n    }\n\n\n    _triggerSlideEvent(relatedTarget, eventDirectionName) {\n      const slideEvent = $.Event(Event.SLIDE, {\n        relatedTarget,\n        direction: eventDirectionName\n      })\n\n      $(this._element).trigger(slideEvent)\n\n      return slideEvent\n    }\n\n    _setActiveIndicatorElement(element) {\n      if (this._indicatorsElement) {\n        $(this._indicatorsElement)\n          .find(Selector.ACTIVE)\n          .removeClass(ClassName.ACTIVE)\n\n        const nextIndicator = this._indicatorsElement.children[\n          this._getItemIndex(element)\n        ]\n\n        if (nextIndicator) {\n          $(nextIndicator).addClass(ClassName.ACTIVE)\n        }\n      }\n    }\n\n    _slide(direction, element) {\n      const activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]\n      const nextElement   = element || activeElement &&\n        this._getItemByDirection(direction, activeElement)\n\n      const isCycling = Boolean(this._interval)\n\n      let directionalClassName\n      let orderClassName\n      let eventDirectionName\n\n      if (direction === Direction.NEXT) {\n        directionalClassName = ClassName.LEFT\n        orderClassName = ClassName.NEXT\n        eventDirectionName = Direction.LEFT\n      } else {\n        directionalClassName = ClassName.RIGHT\n        orderClassName = ClassName.PREV\n        eventDirectionName = Direction.RIGHT\n      }\n\n      if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {\n        this._isSliding = false\n        return\n      }\n\n      const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)\n      if (slideEvent.isDefaultPrevented()) {\n        return\n      }\n\n      if (!activeElement || !nextElement) {\n        // some weirdness is happening, so we bail\n        return\n      }\n\n      this._isSliding = true\n\n      if (isCycling) {\n        this.pause()\n      }\n\n      this._setActiveIndicatorElement(nextElement)\n\n      const slidEvent = $.Event(Event.SLID, {\n        relatedTarget: nextElement,\n        direction: eventDirectionName\n      })\n\n      if (Util.supportsTransitionEnd() &&\n        $(this._element).hasClass(ClassName.SLIDE)) {\n\n        $(nextElement).addClass(orderClassName)\n\n        Util.reflow(nextElement)\n\n        $(activeElement).addClass(directionalClassName)\n        $(nextElement).addClass(directionalClassName)\n\n        $(activeElement)\n          .one(Util.TRANSITION_END, () => {\n            $(nextElement)\n              .removeClass(`${directionalClassName} ${orderClassName}`)\n              .addClass(ClassName.ACTIVE)\n\n            $(activeElement).removeClass(`${ClassName.ACTIVE} ${orderClassName} ${directionalClassName}`)\n\n            this._isSliding = false\n\n            setTimeout(() => $(this._element).trigger(slidEvent), 0)\n\n          })\n          .emulateTransitionEnd(TRANSITION_DURATION)\n\n      } else {\n        $(activeElement).removeClass(ClassName.ACTIVE)\n        $(nextElement).addClass(ClassName.ACTIVE)\n\n        this._isSliding = false\n        $(this._element).trigger(slidEvent)\n      }\n\n      if (isCycling) {\n        this.cycle()\n      }\n    }\n\n\n    // static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n        let data      = $(this).data(DATA_KEY)\n        const _config = $.extend({}, Default, $(this).data())\n\n        if (typeof config === 'object') {\n          $.extend(_config, config)\n        }\n\n        const action = typeof config === 'string' ? config : _config.slide\n\n        if (!data) {\n          data = new Carousel(this, _config)\n          $(this).data(DATA_KEY, data)\n        }\n\n        if (typeof config === 'number') {\n          data.to(config)\n        } else if (typeof action === 'string') {\n          if (data[action] === undefined) {\n            throw new Error(`No method named \"${action}\"`)\n          }\n          data[action]()\n        } else if (_config.interval) {\n          data.pause()\n          data.cycle()\n        }\n      })\n    }\n\n    static _dataApiClickHandler(event) {\n      const selector = Util.getSelectorFromElement(this)\n\n      if (!selector) {\n        return\n      }\n\n      const target = $(selector)[0]\n\n      if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {\n        return\n      }\n\n      const config     = $.extend({}, $(target).data(), $(this).data())\n      const slideIndex = this.getAttribute('data-slide-to')\n\n      if (slideIndex) {\n        config.interval = false\n      }\n\n      Carousel._jQueryInterface.call($(target), config)\n\n      if (slideIndex) {\n        $(target).data(DATA_KEY).to(slideIndex)\n      }\n\n      event.preventDefault()\n    }\n\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Data Api implementation\n   * ------------------------------------------------------------------------\n   */\n\n  $(document)\n    .on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)\n\n  $(window).on(Event.LOAD_DATA_API, () => {\n    $(Selector.DATA_RIDE).each(function () {\n      const $carousel = $(this)\n      Carousel._jQueryInterface.call($carousel, $carousel.data())\n    })\n  })\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * jQuery\n   * ------------------------------------------------------------------------\n   */\n\n  $.fn[NAME]             = Carousel._jQueryInterface\n  $.fn[NAME].Constructor = Carousel\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return Carousel._jQueryInterface\n  }\n\n  return Carousel\n\n})(jQuery)\n\nexport default Carousel\n"]}
\ No newline at end of file
diff --git a/js/dist/dropdown.js b/js/dist/dropdown.js
index 52d13ad12..6a1b227b1 100644
--- a/js/dist/dropdown.js
+++ b/js/dist/dropdown.js
@@ -24,9 +24,11 @@ var Dropdown = function ($) {
   var DATA_API_KEY = '.data-api';
   var JQUERY_NO_CONFLICT = $.fn[NAME];
   var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
+  var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space 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 + '|' + SPACE_KEYCODE);
 
   var Event = {
     HIDE: 'hide' + EVENT_KEY,
@@ -199,7 +201,7 @@ var Dropdown = function ($) {
     };
 
     Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
-      if (!/(38|40|27|32)/.test(event.which) || /input|textarea/i.test(event.target.tagName)) {
+      if (!REGEXP_KEYDOWN.test(event.which) || /input|textarea/i.test(event.target.tagName)) {
         return;
       }
 
diff --git a/js/dist/dropdown.js.map b/js/dist/dropdown.js.map
index cfd916b96..c27c117b4 100644
--- a/js/dist/dropdown.js.map
+++ b/js/dist/dropdown.js.map
@@ -1 +1 @@
-{"version":3,"sources":["../src/dropdown.js"],"names":["Dropdown","$","NAME","VERSION","DATA_KEY","EVENT_KEY","DATA_API_KEY","JQUERY_NO_CONFLICT","fn","ESCAPE_KEYCODE","ARROW_UP_KEYCODE","ARROW_DOWN_KEYCODE","RIGHT_MOUSE_BUTTON_WHICH","Event","HIDE","HIDDEN","SHOW","SHOWN","CLICK","CLICK_DATA_API","FOCUSIN_DATA_API","KEYDOWN_DATA_API","ClassName","BACKDROP","DISABLED","Selector","DATA_TOGGLE","FORM_CHILD","ROLE_MENU","ROLE_LISTBOX","NAVBAR_NAV","VISIBLE_ITEMS","element","_element","_addEventListeners","toggle","disabled","hasClass","parent","_getParentFromElement","isActive","_clearMenus","document","documentElement","closest","length","dropdown","createElement","className","insertBefore","on","relatedTarget","showEvent","trigger","isDefaultPrevented","focus","setAttribute","toggleClass","dispose","removeData","off","_jQueryInterface","config","each","data","undefined","Error","call","event","which","backdrop","parentNode","removeChild","toggles","makeArray","i","type","test","target","tagName","contains","hideEvent","removeClass","selector","Util","getSelectorFromElement","_dataApiKeydownHandler","preventDefault","stopPropagation","find","items","get","index","indexOf","prototype","e","Constructor","noConflict","jQuery"],"mappings":";;;;AAGA;;;;;;;AAOA,IAAMA,WAAY,UAACC,CAAD,EAAO;;AAGvB;;;;;;AAMA,MAAMC,OAA2B,UAAjC;AACA,MAAMC,UAA2B,eAAjC;AACA,MAAMC,WAA2B,aAAjC;AACA,MAAMC,kBAA+BD,QAArC;AACA,MAAME,eAA2B,WAAjC;AACA,MAAMC,qBAA2BN,EAAEO,EAAF,CAAKN,IAAL,CAAjC;AACA,MAAMO,iBAA2B,EAAjC,CAfuB,CAea;AACpC,MAAMC,mBAA2B,EAAjC,CAhBuB,CAgBa;AACpC,MAAMC,qBAA2B,EAAjC,CAjBuB,CAiBa;AACpC,MAAMC,2BAA2B,CAAjC,CAlBuB,CAkBY;;AAEnC,MAAMC,QAAQ;AACZC,mBAA0BT,SADd;AAEZU,uBAA4BV,SAFhB;AAGZW,mBAA0BX,SAHd;AAIZY,qBAA2BZ,SAJf;AAKZa,qBAA2Bb,SALf;AAMZc,8BAA2Bd,SAA3B,GAAuCC,YAN3B;AAOZc,kCAA6Bf,SAA7B,GAAyCC,YAP7B;AAQZe,kCAA6BhB,SAA7B,GAAyCC;AAR7B,GAAd;;AAWA,MAAMgB,YAAY;AAChBC,cAAW,mBADK;AAEhBC,cAAW,UAFK;AAGhBR,UAAW;AAHK,GAAlB;;AAMA,MAAMS,WAAW;AACfF,cAAgB,oBADD;AAEfG,iBAAgB,0BAFD;AAGfC,gBAAgB,gBAHD;AAIfC,eAAgB,eAJD;AAKfC,kBAAgB,kBALD;AAMfC,gBAAgB,aAND;AAOfC,mBAAgB,wCACA;AARD,GAAjB;;AAYA;;;;;;AAjDuB,MAuDjB/B,QAvDiB;AAyDrB,sBAAYgC,OAAZ,EAAqB;AAAA;;AACnB,WAAKC,QAAL,GAAgBD,OAAhB;;AAEA,WAAKE,kBAAL;AACD;;AAGD;;AAOA;;AAvEqB,uBAyErBC,MAzEqB,qBAyEZ;AACP,UAAI,KAAKC,QAAL,IAAiBnC,EAAE,IAAF,EAAQoC,QAAR,CAAiBf,UAAUE,QAA3B,CAArB,EAA2D;AACzD,eAAO,KAAP;AACD;;AAED,UAAMc,SAAWtC,SAASuC,qBAAT,CAA+B,IAA/B,CAAjB;AACA,UAAMC,WAAWvC,EAAEqC,MAAF,EAAUD,QAAV,CAAmBf,UAAUN,IAA7B,CAAjB;;AAEAhB,eAASyC,WAAT;;AAEA,UAAID,QAAJ,EAAc;AACZ,eAAO,KAAP;AACD;;AAED,UAAI,kBAAkBE,SAASC,eAA3B,IACD,CAAC1C,EAAEqC,MAAF,EAAUM,OAAV,CAAkBnB,SAASK,UAA3B,EAAuCe,MAD3C,EACmD;;AAEjD;AACA,YAAMC,WAAeJ,SAASK,aAAT,CAAuB,KAAvB,CAArB;AACAD,iBAASE,SAAT,GAAqB1B,UAAUC,QAA/B;AACAtB,UAAE6C,QAAF,EAAYG,YAAZ,CAAyB,IAAzB;AACAhD,UAAE6C,QAAF,EAAYI,EAAZ,CAAe,OAAf,EAAwBlD,SAASyC,WAAjC;AACD;;AAED,UAAMU,gBAAgB;AACpBA,uBAAgB;AADI,OAAtB;AAGA,UAAMC,YAAgBnD,EAAEY,KAAF,CAAQA,MAAMG,IAAd,EAAoBmC,aAApB,CAAtB;;AAEAlD,QAAEqC,MAAF,EAAUe,OAAV,CAAkBD,SAAlB;;AAEA,UAAIA,UAAUE,kBAAV,EAAJ,EAAoC;AAClC,eAAO,KAAP;AACD;;AAED,WAAKC,KAAL;AACA,WAAKC,YAAL,CAAkB,eAAlB,EAAmC,IAAnC;;AAEAvD,QAAEqC,MAAF,EAAUmB,WAAV,CAAsBnC,UAAUN,IAAhC;AACAf,QAAEqC,MAAF,EAAUe,OAAV,CAAkBpD,EAAEY,KAAF,CAAQA,MAAMI,KAAd,EAAqBkC,aAArB,CAAlB;;AAEA,aAAO,KAAP;AACD,KAnHoB;;AAAA,uBAqHrBO,OArHqB,sBAqHX;AACRzD,QAAE0D,UAAF,CAAa,KAAK1B,QAAlB,EAA4B7B,QAA5B;AACAH,QAAE,KAAKgC,QAAP,EAAiB2B,GAAjB,CAAqBvD,SAArB;AACA,WAAK4B,QAAL,GAAgB,IAAhB;AACD,KAzHoB;;AA4HrB;;AA5HqB,uBA8HrBC,kBA9HqB,iCA8HA;AACnBjC,QAAE,KAAKgC,QAAP,EAAiBiB,EAAjB,CAAoBrC,MAAMK,KAA1B,EAAiC,KAAKiB,MAAtC;AACD,KAhIoB;;AAmIrB;;AAnIqB,aAqId0B,gBArIc,6BAqIGC,MArIH,EAqIW;AAC9B,aAAO,KAAKC,IAAL,CAAU,YAAY;AAC3B,YAAIC,OAAO/D,EAAE,IAAF,EAAQ+D,IAAR,CAAa5D,QAAb,CAAX;;AAEA,YAAI,CAAC4D,IAAL,EAAW;AACTA,iBAAO,IAAIhE,QAAJ,CAAa,IAAb,CAAP;AACAC,YAAE,IAAF,EAAQ+D,IAAR,CAAa5D,QAAb,EAAuB4D,IAAvB;AACD;;AAED,YAAI,OAAOF,MAAP,KAAkB,QAAtB,EAAgC;AAC9B,cAAIE,KAAKF,MAAL,MAAiBG,SAArB,EAAgC;AAC9B,kBAAM,IAAIC,KAAJ,uBAA8BJ,MAA9B,OAAN;AACD;AACDE,eAAKF,MAAL,EAAaK,IAAb,CAAkB,IAAlB;AACD;AACF,OAdM,CAAP;AAeD,KArJoB;;AAAA,aAuJd1B,WAvJc,wBAuJF2B,KAvJE,EAuJK;AACxB,UAAIA,SAASA,MAAMC,KAAN,KAAgBzD,wBAA7B,EAAuD;AACrD;AACD;;AAED,UAAM0D,WAAWrE,EAAEwB,SAASF,QAAX,EAAqB,CAArB,CAAjB;AACA,UAAI+C,QAAJ,EAAc;AACZA,iBAASC,UAAT,CAAoBC,WAApB,CAAgCF,QAAhC;AACD;;AAED,UAAMG,UAAUxE,EAAEyE,SAAF,CAAYzE,EAAEwB,SAASC,WAAX,CAAZ,CAAhB;;AAEA,WAAK,IAAIiD,IAAI,CAAb,EAAgBA,IAAIF,QAAQ5B,MAA5B,EAAoC8B,GAApC,EAAyC;AACvC,YAAMrC,SAAgBtC,SAASuC,qBAAT,CAA+BkC,QAAQE,CAAR,CAA/B,CAAtB;AACA,YAAMxB,gBAAgB;AACpBA,yBAAgBsB,QAAQE,CAAR;AADI,SAAtB;;AAIA,YAAI,CAAC1E,EAAEqC,MAAF,EAAUD,QAAV,CAAmBf,UAAUN,IAA7B,CAAL,EAAyC;AACvC;AACD;;AAED,YAAIoD,UAAUA,MAAMQ,IAAN,KAAe,OAAf,IACV,kBAAkBC,IAAlB,CAAuBT,MAAMU,MAAN,CAAaC,OAApC,CADU,IACsCX,MAAMQ,IAAN,KAAe,SAD/D,KAEG3E,EAAE+E,QAAF,CAAW1C,MAAX,EAAmB8B,MAAMU,MAAzB,CAFP,EAEyC;AACvC;AACD;;AAED,YAAMG,YAAYhF,EAAEY,KAAF,CAAQA,MAAMC,IAAd,EAAoBqC,aAApB,CAAlB;AACAlD,UAAEqC,MAAF,EAAUe,OAAV,CAAkB4B,SAAlB;AACA,YAAIA,UAAU3B,kBAAV,EAAJ,EAAoC;AAClC;AACD;;AAEDmB,gBAAQE,CAAR,EAAWnB,YAAX,CAAwB,eAAxB,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Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-alpha.6): dropdown.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst Dropdown = (($) => {\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Constants\n   * ------------------------------------------------------------------------\n   */\n\n  const NAME                     = 'dropdown'\n  const VERSION                  = '4.0.0-alpha.6'\n  const DATA_KEY                 = 'bs.dropdown'\n  const EVENT_KEY                = `.${DATA_KEY}`\n  const DATA_API_KEY             = '.data-api'\n  const JQUERY_NO_CONFLICT       = $.fn[NAME]\n  const ESCAPE_KEYCODE           = 27 // KeyboardEvent.which value for Escape (Esc) key\n  const ARROW_UP_KEYCODE         = 38 // KeyboardEvent.which value for up arrow key\n  const ARROW_DOWN_KEYCODE       = 40 // KeyboardEvent.which value for down arrow key\n  const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)\n\n  const Event = {\n    HIDE             : `hide${EVENT_KEY}`,\n    HIDDEN           : `hidden${EVENT_KEY}`,\n    SHOW             : `show${EVENT_KEY}`,\n    SHOWN            : `shown${EVENT_KEY}`,\n    CLICK            : `click${EVENT_KEY}`,\n    CLICK_DATA_API   : `click${EVENT_KEY}${DATA_API_KEY}`,\n    FOCUSIN_DATA_API : `focusin${EVENT_KEY}${DATA_API_KEY}`,\n    KEYDOWN_DATA_API : `keydown${EVENT_KEY}${DATA_API_KEY}`\n  }\n\n  const ClassName = {\n    BACKDROP : 'dropdown-backdrop',\n    DISABLED : 'disabled',\n    SHOW     : 'show'\n  }\n\n  const Selector = {\n    BACKDROP      : '.dropdown-backdrop',\n    DATA_TOGGLE   : '[data-toggle=\"dropdown\"]',\n    FORM_CHILD    : '.dropdown form',\n    ROLE_MENU     : '[role=\"menu\"]',\n    ROLE_LISTBOX  : '[role=\"listbox\"]',\n    NAVBAR_NAV    : '.navbar-nav',\n    VISIBLE_ITEMS : '[role=\"menu\"] li:not(.disabled) a, '\n                  + '[role=\"listbox\"] li:not(.disabled) a'\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Class Definition\n   * ------------------------------------------------------------------------\n   */\n\n  class Dropdown {\n\n    constructor(element) {\n      this._element = element\n\n      this._addEventListeners()\n    }\n\n\n    // getters\n\n    static get VERSION() {\n      return VERSION\n    }\n\n\n    // public\n\n    toggle() {\n      if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {\n        return false\n      }\n\n      const parent   = Dropdown._getParentFromElement(this)\n      const isActive = $(parent).hasClass(ClassName.SHOW)\n\n      Dropdown._clearMenus()\n\n      if (isActive) {\n        return false\n      }\n\n      if ('ontouchstart' in document.documentElement &&\n         !$(parent).closest(Selector.NAVBAR_NAV).length) {\n\n        // if mobile we use a backdrop because click events don't delegate\n        const dropdown     = document.createElement('div')\n        dropdown.className = ClassName.BACKDROP\n        $(dropdown).insertBefore(this)\n        $(dropdown).on('click', Dropdown._clearMenus)\n      }\n\n      const relatedTarget = {\n        relatedTarget : this\n      }\n      const showEvent     = $.Event(Event.SHOW, relatedTarget)\n\n      $(parent).trigger(showEvent)\n\n      if (showEvent.isDefaultPrevented()) {\n        return false\n      }\n\n      this.focus()\n      this.setAttribute('aria-expanded', true)\n\n      $(parent).toggleClass(ClassName.SHOW)\n      $(parent).trigger($.Event(Event.SHOWN, relatedTarget))\n\n      return false\n    }\n\n    dispose() {\n      $.removeData(this._element, DATA_KEY)\n      $(this._element).off(EVENT_KEY)\n      this._element = null\n    }\n\n\n    // private\n\n    _addEventListeners() {\n      $(this._element).on(Event.CLICK, this.toggle)\n    }\n\n\n    // static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n        let data = $(this).data(DATA_KEY)\n\n        if (!data) {\n          data = new Dropdown(this)\n          $(this).data(DATA_KEY, data)\n        }\n\n        if (typeof config === 'string') {\n          if (data[config] === undefined) {\n            throw new Error(`No method named \"${config}\"`)\n          }\n          data[config].call(this)\n        }\n      })\n    }\n\n    static _clearMenus(event) {\n      if (event && event.which === RIGHT_MOUSE_BUTTON_WHICH) {\n        return\n      }\n\n      const backdrop = $(Selector.BACKDROP)[0]\n      if (backdrop) {\n        backdrop.parentNode.removeChild(backdrop)\n      }\n\n      const toggles = $.makeArray($(Selector.DATA_TOGGLE))\n\n      for (let i = 0; i < toggles.length; i++) {\n        const parent        = Dropdown._getParentFromElement(toggles[i])\n        const relatedTarget = {\n          relatedTarget : toggles[i]\n        }\n\n        if (!$(parent).hasClass(ClassName.SHOW)) {\n          continue\n        }\n\n        if (event && (event.type === 'click' &&\n            /input|textarea/i.test(event.target.tagName) || event.type === 'focusin')\n            && $.contains(parent, event.target)) {\n          continue\n        }\n\n        const hideEvent = $.Event(Event.HIDE, relatedTarget)\n        $(parent).trigger(hideEvent)\n        if (hideEvent.isDefaultPrevented()) {\n          continue\n        }\n\n        toggles[i].setAttribute('aria-expanded', 'false')\n\n        $(parent)\n          .removeClass(ClassName.SHOW)\n          .trigger($.Event(Event.HIDDEN, relatedTarget))\n      }\n    }\n\n    static _getParentFromElement(element) {\n      let parent\n      const selector = Util.getSelectorFromElement(element)\n\n      if (selector) {\n        parent = $(selector)[0]\n      }\n\n      return parent || element.parentNode\n    }\n\n    static _dataApiKeydownHandler(event) {\n      if (!/(38|40|27|32)/.test(event.which) ||\n         /input|textarea/i.test(event.target.tagName)) {\n        return\n      }\n\n      event.preventDefault()\n      event.stopPropagation()\n\n      if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {\n        return\n      }\n\n      const parent   = Dropdown._getParentFromElement(this)\n      const isActive = $(parent).hasClass(ClassName.SHOW)\n\n      if (!isActive && event.which !== ESCAPE_KEYCODE ||\n           isActive && event.which === ESCAPE_KEYCODE) {\n\n        if (event.which === ESCAPE_KEYCODE) {\n          const toggle = $(parent).find(Selector.DATA_TOGGLE)[0]\n          $(toggle).trigger('focus')\n        }\n\n        $(this).trigger('click')\n        return\n      }\n\n      const items = $(parent).find(Selector.VISIBLE_ITEMS).get()\n\n      if (!items.length) {\n        return\n      }\n\n      let index = items.indexOf(event.target)\n\n      if (event.which === ARROW_UP_KEYCODE && index > 0) { // up\n        index--\n      }\n\n      if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // down\n        index++\n      }\n\n      if (index < 0) {\n        index = 0\n      }\n\n      items[index].focus()\n    }\n\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Data Api implementation\n   * ------------------------------------------------------------------------\n   */\n\n  $(document)\n    .on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE,  Dropdown._dataApiKeydownHandler)\n    .on(Event.KEYDOWN_DATA_API, Selector.ROLE_MENU,    Dropdown._dataApiKeydownHandler)\n    .on(Event.KEYDOWN_DATA_API, Selector.ROLE_LISTBOX, Dropdown._dataApiKeydownHandler)\n    .on(`${Event.CLICK_DATA_API} ${Event.FOCUSIN_DATA_API}`, Dropdown._clearMenus)\n    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle)\n    .on(Event.CLICK_DATA_API, Selector.FORM_CHILD, (e) => {\n      e.stopPropagation()\n    })\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * jQuery\n   * ------------------------------------------------------------------------\n   */\n\n  $.fn[NAME]             = Dropdown._jQueryInterface\n  $.fn[NAME].Constructor = Dropdown\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return Dropdown._jQueryInterface\n  }\n\n  return Dropdown\n\n})(jQuery)\n\nexport default Dropdown\n"]}
\ No newline at end of file
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Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-alpha.6): dropdown.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst Dropdown = (($) => {\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Constants\n   * ------------------------------------------------------------------------\n   */\n\n  const NAME                     = 'dropdown'\n  const VERSION                  = '4.0.0-alpha.6'\n  const DATA_KEY                 = 'bs.dropdown'\n  const EVENT_KEY                = `.${DATA_KEY}`\n  const DATA_API_KEY             = '.data-api'\n  const JQUERY_NO_CONFLICT       = $.fn[NAME]\n  const ESCAPE_KEYCODE           = 27 // KeyboardEvent.which value for Escape (Esc) key\n  const SPACE_KEYCODE            = 32 // KeyboardEvent.which value for space key\n  const ARROW_UP_KEYCODE         = 38 // KeyboardEvent.which value for up arrow key\n  const ARROW_DOWN_KEYCODE       = 40 // KeyboardEvent.which value for down arrow key\n  const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)\n  const REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}|${SPACE_KEYCODE}`)\n\n  const Event = {\n    HIDE             : `hide${EVENT_KEY}`,\n    HIDDEN           : `hidden${EVENT_KEY}`,\n    SHOW             : `show${EVENT_KEY}`,\n    SHOWN            : `shown${EVENT_KEY}`,\n    CLICK            : `click${EVENT_KEY}`,\n    CLICK_DATA_API   : `click${EVENT_KEY}${DATA_API_KEY}`,\n    FOCUSIN_DATA_API : `focusin${EVENT_KEY}${DATA_API_KEY}`,\n    KEYDOWN_DATA_API : `keydown${EVENT_KEY}${DATA_API_KEY}`\n  }\n\n  const ClassName = {\n    BACKDROP : 'dropdown-backdrop',\n    DISABLED : 'disabled',\n    SHOW     : 'show'\n  }\n\n  const Selector = {\n    BACKDROP      : '.dropdown-backdrop',\n    DATA_TOGGLE   : '[data-toggle=\"dropdown\"]',\n    FORM_CHILD    : '.dropdown form',\n    ROLE_MENU     : '[role=\"menu\"]',\n    ROLE_LISTBOX  : '[role=\"listbox\"]',\n    NAVBAR_NAV    : '.navbar-nav',\n    VISIBLE_ITEMS : '[role=\"menu\"] li:not(.disabled) a, '\n                  + '[role=\"listbox\"] li:not(.disabled) a'\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Class Definition\n   * ------------------------------------------------------------------------\n   */\n\n  class Dropdown {\n\n    constructor(element) {\n      this._element = element\n\n      this._addEventListeners()\n    }\n\n\n    // getters\n\n    static get VERSION() {\n      return VERSION\n    }\n\n\n    // public\n\n    toggle() {\n      if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {\n        return false\n      }\n\n      const parent   = Dropdown._getParentFromElement(this)\n      const isActive = $(parent).hasClass(ClassName.SHOW)\n\n      Dropdown._clearMenus()\n\n      if (isActive) {\n        return false\n      }\n\n      if ('ontouchstart' in document.documentElement &&\n         !$(parent).closest(Selector.NAVBAR_NAV).length) {\n\n        // if mobile we use a backdrop because click events don't delegate\n        const dropdown     = document.createElement('div')\n        dropdown.className = ClassName.BACKDROP\n        $(dropdown).insertBefore(this)\n        $(dropdown).on('click', Dropdown._clearMenus)\n      }\n\n      const relatedTarget = {\n        relatedTarget : this\n      }\n      const showEvent     = $.Event(Event.SHOW, relatedTarget)\n\n      $(parent).trigger(showEvent)\n\n      if (showEvent.isDefaultPrevented()) {\n        return false\n      }\n\n      this.focus()\n      this.setAttribute('aria-expanded', true)\n\n      $(parent).toggleClass(ClassName.SHOW)\n      $(parent).trigger($.Event(Event.SHOWN, relatedTarget))\n\n      return false\n    }\n\n    dispose() {\n      $.removeData(this._element, DATA_KEY)\n      $(this._element).off(EVENT_KEY)\n      this._element = null\n    }\n\n\n    // private\n\n    _addEventListeners() {\n      $(this._element).on(Event.CLICK, this.toggle)\n    }\n\n\n    // static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n        let data = $(this).data(DATA_KEY)\n\n        if (!data) {\n          data = new Dropdown(this)\n          $(this).data(DATA_KEY, data)\n        }\n\n        if (typeof config === 'string') {\n          if (data[config] === undefined) {\n            throw new Error(`No method named \"${config}\"`)\n          }\n          data[config].call(this)\n        }\n      })\n    }\n\n    static _clearMenus(event) {\n      if (event && event.which === RIGHT_MOUSE_BUTTON_WHICH) {\n        return\n      }\n\n      const backdrop = $(Selector.BACKDROP)[0]\n      if (backdrop) {\n        backdrop.parentNode.removeChild(backdrop)\n      }\n\n      const toggles = $.makeArray($(Selector.DATA_TOGGLE))\n\n      for (let i = 0; i < toggles.length; i++) {\n        const parent        = Dropdown._getParentFromElement(toggles[i])\n        const relatedTarget = {\n          relatedTarget : toggles[i]\n        }\n\n        if (!$(parent).hasClass(ClassName.SHOW)) {\n          continue\n        }\n\n        if (event && (event.type === 'click' &&\n            /input|textarea/i.test(event.target.tagName) || event.type === 'focusin')\n            && $.contains(parent, event.target)) {\n          continue\n        }\n\n        const hideEvent = $.Event(Event.HIDE, relatedTarget)\n        $(parent).trigger(hideEvent)\n        if (hideEvent.isDefaultPrevented()) {\n          continue\n        }\n\n        toggles[i].setAttribute('aria-expanded', 'false')\n\n        $(parent)\n          .removeClass(ClassName.SHOW)\n          .trigger($.Event(Event.HIDDEN, relatedTarget))\n      }\n    }\n\n    static _getParentFromElement(element) {\n      let parent\n      const selector = Util.getSelectorFromElement(element)\n\n      if (selector) {\n        parent = $(selector)[0]\n      }\n\n      return parent || element.parentNode\n    }\n\n    static _dataApiKeydownHandler(event) {\n      if (!REGEXP_KEYDOWN.test(event.which) ||\n         /input|textarea/i.test(event.target.tagName)) {\n        return\n      }\n\n      event.preventDefault()\n      event.stopPropagation()\n\n      if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {\n        return\n      }\n\n      const parent   = Dropdown._getParentFromElement(this)\n      const isActive = $(parent).hasClass(ClassName.SHOW)\n\n      if (!isActive && event.which !== ESCAPE_KEYCODE ||\n           isActive && event.which === ESCAPE_KEYCODE) {\n\n        if (event.which === ESCAPE_KEYCODE) {\n          const toggle = $(parent).find(Selector.DATA_TOGGLE)[0]\n          $(toggle).trigger('focus')\n        }\n\n        $(this).trigger('click')\n        return\n      }\n\n      const items = $(parent).find(Selector.VISIBLE_ITEMS).get()\n\n      if (!items.length) {\n        return\n      }\n\n      let index = items.indexOf(event.target)\n\n      if (event.which === ARROW_UP_KEYCODE && index > 0) { // up\n        index--\n      }\n\n      if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // down\n        index++\n      }\n\n      if (index < 0) {\n        index = 0\n      }\n\n      items[index].focus()\n    }\n\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Data Api implementation\n   * ------------------------------------------------------------------------\n   */\n\n  $(document)\n    .on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE,  Dropdown._dataApiKeydownHandler)\n    .on(Event.KEYDOWN_DATA_API, Selector.ROLE_MENU,    Dropdown._dataApiKeydownHandler)\n    .on(Event.KEYDOWN_DATA_API, Selector.ROLE_LISTBOX, Dropdown._dataApiKeydownHandler)\n    .on(`${Event.CLICK_DATA_API} ${Event.FOCUSIN_DATA_API}`, Dropdown._clearMenus)\n    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle)\n    .on(Event.CLICK_DATA_API, Selector.FORM_CHILD, (e) => {\n      e.stopPropagation()\n    })\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * jQuery\n   * ------------------------------------------------------------------------\n   */\n\n  $.fn[NAME]             = Dropdown._jQueryInterface\n  $.fn[NAME].Constructor = Dropdown\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return Dropdown._jQueryInterface\n  }\n\n  return Dropdown\n\n})(jQuery)\n\nexport default Dropdown\n"]}
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