Rebuild the dist to pickup new utilities file (#29105)

Dist after adding new utils file

5 files changed, 29 insertions, 38 deletions

diff --git a/js/dist/dom/event-handler.js.map b/js/dist/dom/event-handler.js.map
index 646d1a144..7465cb3ae 100644
--- a/js/dist/dom/event-handler.js.map
+++ b/js/dist/dom/event-handler.js.map
@@ -1 +1 @@
-{"version":3,"file":"event-handler.js","sources":["../../src/util/index.js","../../src/dom/event-handler.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): util/index.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst MAX_UID = 1000000\nconst MILLISECONDS_MULTIPLIER = 1000\nconst TRANSITION_END = 'transitionend'\nconst { jQuery } = window\n\n// Shoutout AngusCroll (https://goo.gl/pxwQGp)\nconst toType = obj => ({}.toString.call(obj).match(/\\s([a-z]+)/i)[1].toLowerCase())\n\n/**\n * --------------------------------------------------------------------------\n * Public Util Api\n * --------------------------------------------------------------------------\n */\n\nconst getUID = prefix => {\n  do {\n    // eslint-disable-next-line no-bitwise\n    prefix += ~~(Math.random() * MAX_UID) // \"~~\" acts like a faster Math.floor() here\n  } while (document.getElementById(prefix))\n\n  return prefix\n}\n\nconst getSelectorFromElement = element => {\n  let selector = element.getAttribute('data-target')\n\n  if (!selector || selector === '#') {\n    const hrefAttr = element.getAttribute('href')\n\n    selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : ''\n  }\n\n  try {\n    return document.querySelector(selector) ? selector : null\n  } catch (error) {\n    return null\n  }\n}\n\nconst getTransitionDurationFromElement = element => {\n  if (!element) {\n    return 0\n  }\n\n  // Get transition-duration of the element\n  let {\n    transitionDuration,\n    transitionDelay\n  } = window.getComputedStyle(element)\n\n  const floatTransitionDuration = parseFloat(transitionDuration)\n  const floatTransitionDelay = parseFloat(transitionDelay)\n\n  // Return 0 if element or transition duration is not found\n  if (!floatTransitionDuration && !floatTransitionDelay) {\n    return 0\n  }\n\n  // If multiple durations are defined, take the first\n  transitionDuration = transitionDuration.split(',')[0]\n  transitionDelay = transitionDelay.split(',')[0]\n\n  return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER\n}\n\nconst triggerTransitionEnd = element => {\n  const evt = document.createEvent('HTMLEvents')\n\n  evt.initEvent(TRANSITION_END, true, true)\n  element.dispatchEvent(evt)\n}\n\nconst isElement = obj => (obj[0] || obj).nodeType\n\nconst emulateTransitionEnd = (element, duration) => {\n  let called = false\n  const durationPadding = 5\n  const emulatedDuration = duration + durationPadding\n  function listener() {\n    called = true\n    element.removeEventListener(TRANSITION_END, listener)\n  }\n\n  element.addEventListener(TRANSITION_END, listener)\n  setTimeout(() => {\n    if (!called) {\n      triggerTransitionEnd(element)\n    }\n  }, emulatedDuration)\n}\n\nconst typeCheckConfig = (componentName, config, configTypes) => {\n  Object.keys(configTypes)\n    .forEach(property => {\n      const expectedTypes = configTypes[property]\n      const value = config[property]\n      const valueType = value && isElement(value) ?\n        'element' :\n        toType(value)\n\n      if (!new RegExp(expectedTypes).test(valueType)) {\n        throw new Error(\n          `${componentName.toUpperCase()}: ` +\n          `Option \"${property}\" provided type \"${valueType}\" ` +\n          `but expected type \"${expectedTypes}\".`)\n      }\n    })\n}\n\nconst makeArray = nodeList => {\n  if (!nodeList) {\n    return []\n  }\n\n  return [].slice.call(nodeList)\n}\n\nconst isVisible = element => {\n  if (!element) {\n    return false\n  }\n\n  if (element.style && element.parentNode && element.parentNode.style) {\n    return element.style.display !== 'none' &&\n      element.parentNode.style.display !== 'none' &&\n      element.style.visibility !== 'hidden'\n  }\n\n  return false\n}\n\nconst findShadowRoot 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--------------------------------------------------------------------------\n * Bootstrap (v4.3.1): dom/event-handler.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport { jQuery as $ } from '../util/index'\nimport { createCustomEvent, defaultPreventedPreservedOnDispatch } from './polyfill'\n\n/**\n * ------------------------------------------------------------------------\n * Constants\n * ------------------------------------------------------------------------\n */\n\nconst namespaceRegex = /[^.]*(?=\\..*)\\.|.*/\nconst stripNameRegex = /\\..*/\nconst keyEventRegex = /^key/\nconst stripUidRegex = /::\\d+$/\nconst eventRegistry = {} // Events storage\nlet uidEvent = 1\nconst customEvents = {\n  mouseenter: 'mouseover',\n  mouseleave: 'mouseout'\n}\nconst nativeEvents = [\n  'click',\n  'dblclick',\n  'mouseup',\n  'mousedown',\n  'contextmenu',\n  'mousewheel',\n  'DOMMouseScroll',\n  'mouseover',\n  'mouseout',\n  'mousemove',\n  'selectstart',\n  'selectend',\n  'keydown',\n  'keypress',\n  'keyup',\n  'orientationchange',\n  'touchstart',\n  'touchmove',\n  'touchend',\n  'touchcancel',\n  'pointerdown',\n  'pointermove',\n  'pointerup',\n  'pointerleave',\n  'pointercancel',\n  'gesturestart',\n  'gesturechange',\n  'gestureend',\n  'focus',\n  'blur',\n  'change',\n  'reset',\n  'select',\n  'submit',\n  'focusin',\n  'focusout',\n  'load',\n  'unload',\n  'beforeunload',\n  'resize',\n  'move',\n  'DOMContentLoaded',\n  'readystatechange',\n  'error',\n  'abort',\n  'scroll'\n]\n\n/**\n * ------------------------------------------------------------------------\n * Private methods\n * ------------------------------------------------------------------------\n */\n\nfunction getUidEvent(element, uid) {\n  return uid && `${uid}::${uidEvent++}` || element.uidEvent || uidEvent++\n}\n\nfunction getEvent(element) {\n  const uid = getUidEvent(element)\n\n  element.uidEvent = uid\n  eventRegistry[uid] = eventRegistry[uid] || {}\n\n  return eventRegistry[uid]\n}\n\nfunction fixEvent(event, element) {\n  // Add which for key events\n  if (event.which === null && keyEventRegex.test(event.type)) {\n    event.which = event.charCode === null ? event.keyCode : event.charCode\n  }\n\n  event.delegateTarget = element\n}\n\nfunction bootstrapHandler(element, fn) {\n  return function handler(event) {\n    fixEvent(event, element)\n    if (handler.oneOff) {\n      EventHandler.off(element, event.type, fn)\n    }\n\n    return fn.apply(element, [event])\n  }\n}\n\nfunction bootstrapDelegationHandler(element, selector, fn) {\n  return function handler(event) {\n    const domElements = element.querySelectorAll(selector)\n\n    for (let { target } = event; target && target !== this; target = target.parentNode) {\n      for (let i = domElements.length; i--;) {\n        if (domElements[i] === target) {\n          fixEvent(event, 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+{"version":3,"file":"event-handler.js","sources":["../../src/util/index.js","../../src/dom/event-handler.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): util/index.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst MAX_UID = 1000000\nconst MILLISECONDS_MULTIPLIER = 1000\nconst TRANSITION_END = 'transitionend'\nconst { jQuery } = window\n\n// Shoutout AngusCroll (https://goo.gl/pxwQGp)\nconst toType = obj => ({}.toString.call(obj).match(/\\s([a-z]+)/i)[1].toLowerCase())\n\n/**\n * --------------------------------------------------------------------------\n * Public Util Api\n * --------------------------------------------------------------------------\n */\n\nconst getUID = prefix => {\n  do {\n    // eslint-disable-next-line no-bitwise\n    prefix += ~~(Math.random() * MAX_UID) // \"~~\" acts like a faster Math.floor() here\n  } while (document.getElementById(prefix))\n\n  return prefix\n}\n\nconst getSelectorFromElement = element => {\n  let selector = element.getAttribute('data-target')\n\n  if (!selector || selector === '#') {\n    const hrefAttr = element.getAttribute('href')\n\n    selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : ''\n  }\n\n  try {\n    return document.querySelector(selector) ? selector : null\n  } catch (error) {\n    return null\n  }\n}\n\nconst getTransitionDurationFromElement = element => {\n  if (!element) {\n    return 0\n  }\n\n  // Get transition-duration of the element\n  let {\n    transitionDuration,\n    transitionDelay\n  } = window.getComputedStyle(element)\n\n  const floatTransitionDuration = parseFloat(transitionDuration)\n  const floatTransitionDelay = parseFloat(transitionDelay)\n\n  // Return 0 if element or transition duration is not found\n  if (!floatTransitionDuration && !floatTransitionDelay) {\n    return 0\n  }\n\n  // If multiple durations are defined, take the first\n  transitionDuration = transitionDuration.split(',')[0]\n  transitionDelay = transitionDelay.split(',')[0]\n\n  return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER\n}\n\nconst triggerTransitionEnd = element => {\n  const evt = document.createEvent('HTMLEvents')\n\n  evt.initEvent(TRANSITION_END, true, true)\n  element.dispatchEvent(evt)\n}\n\nconst isElement = obj => (obj[0] || obj).nodeType\n\nconst emulateTransitionEnd = (element, duration) => {\n  let called = false\n  const durationPadding = 5\n  const emulatedDuration = duration + durationPadding\n  function listener() {\n    called = true\n    element.removeEventListener(TRANSITION_END, listener)\n  }\n\n  element.addEventListener(TRANSITION_END, listener)\n  setTimeout(() => {\n    if (!called) {\n      triggerTransitionEnd(element)\n    }\n  }, emulatedDuration)\n}\n\nconst typeCheckConfig = (componentName, config, configTypes) => {\n  Object.keys(configTypes)\n    .forEach(property => {\n      const expectedTypes = configTypes[property]\n      const value = config[property]\n      const valueType = value && isElement(value) ?\n        'element' :\n        toType(value)\n\n      if (!new RegExp(expectedTypes).test(valueType)) {\n        throw new Error(\n          `${componentName.toUpperCase()}: ` +\n          `Option \"${property}\" provided type \"${valueType}\" ` +\n          `but expected type \"${expectedTypes}\".`)\n      }\n    })\n}\n\nconst makeArray = nodeList => {\n  if (!nodeList) {\n    return []\n  }\n\n  return [].slice.call(nodeList)\n}\n\nconst isVisible = element => {\n  if (!element) {\n    return false\n  }\n\n  if (element.style && element.parentNode && element.parentNode.style) {\n    return element.style.display !== 'none' &&\n      element.parentNode.style.display !== 'none' &&\n      element.style.visibility !== 'hidden'\n  }\n\n  return false\n}\n\nconst findShadowRoot = element => {\n  if (!document.documentElement.attachShadow) {\n    return null\n  }\n\n  // Can find the shadow root otherwise it'll return the document\n  if (typeof element.getRootNode === 'function') {\n    const root = element.getRootNode()\n    return root instanceof ShadowRoot ? root : null\n  }\n\n  if (element instanceof ShadowRoot) {\n    return element\n  }\n\n  // when we don't find a shadow root\n  if (!element.parentNode) {\n    return null\n  }\n\n  return findShadowRoot(element.parentNode)\n}\n\n// eslint-disable-next-line no-empty-function\nconst noop = () => function () {}\n\nconst reflow = element => element.offsetHeight\n\nexport {\n  jQuery,\n  TRANSITION_END,\n  getUID,\n  getSelectorFromElement,\n  getTransitionDurationFromElement,\n  triggerTransitionEnd,\n  isElement,\n  emulateTransitionEnd,\n  typeCheckConfig,\n  makeArray,\n  isVisible,\n  findShadowRoot,\n  noop,\n  reflow\n}\n","/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): dom/event-handler.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport { jQuery as $ } from '../util/index'\nimport { createCustomEvent, defaultPreventedPreservedOnDispatch } from './polyfill'\n\n/**\n * ------------------------------------------------------------------------\n * Constants\n * ------------------------------------------------------------------------\n */\n\nconst namespaceRegex = /[^.]*(?=\\..*)\\.|.*/\nconst stripNameRegex = /\\..*/\nconst keyEventRegex = /^key/\nconst stripUidRegex = /::\\d+$/\nconst eventRegistry = {} // Events storage\nlet uidEvent = 1\nconst customEvents = {\n  mouseenter: 'mouseover',\n  mouseleave: 'mouseout'\n}\nconst nativeEvents = [\n  'click',\n  'dblclick',\n  'mouseup',\n  'mousedown',\n  'contextmenu',\n  'mousewheel',\n  'DOMMouseScroll',\n  'mouseover',\n  'mouseout',\n  'mousemove',\n  'selectstart',\n  'selectend',\n  'keydown',\n  'keypress',\n  'keyup',\n  'orientationchange',\n  'touchstart',\n  'touchmove',\n  'touchend',\n  'touchcancel',\n  'pointerdown',\n  'pointermove',\n  'pointerup',\n  'pointerleave',\n  'pointercancel',\n  'gesturestart',\n  'gesturechange',\n  'gestureend',\n  'focus',\n  'blur',\n  'change',\n  'reset',\n  'select',\n  'submit',\n  'focusin',\n  'focusout',\n  'load',\n  'unload',\n  'beforeunload',\n  'resize',\n  'move',\n  'DOMContentLoaded',\n  'readystatechange',\n  'error',\n  'abort',\n  'scroll'\n]\n\n/**\n * ------------------------------------------------------------------------\n * Private methods\n * ------------------------------------------------------------------------\n */\n\nfunction getUidEvent(element, uid) {\n  return uid && `${uid}::${uidEvent++}` || element.uidEvent || uidEvent++\n}\n\nfunction getEvent(element) {\n  const uid = getUidEvent(element)\n\n  element.uidEvent = uid\n  eventRegistry[uid] = eventRegistry[uid] || {}\n\n  return eventRegistry[uid]\n}\n\nfunction fixEvent(event, element) {\n  // Add which for key events\n  if (event.which === null && keyEventRegex.test(event.type)) {\n    event.which = event.charCode === null ? event.keyCode : event.charCode\n  }\n\n  event.delegateTarget = element\n}\n\nfunction bootstrapHandler(element, fn) {\n  return function handler(event) {\n    fixEvent(event, element)\n    if (handler.oneOff) {\n      EventHandler.off(element, event.type, fn)\n    }\n\n    return fn.apply(element, [event])\n  }\n}\n\nfunction bootstrapDelegationHandler(element, selector, fn) {\n  return function handler(event) {\n    const domElements = element.querySelectorAll(selector)\n\n    for (let { target } = event; target && target !== this; target = target.parentNode) {\n      for (let i = domElements.length; i--;) {\n        if (domElements[i] === target) {\n          fixEvent(event, target)\n\n          if (handler.oneOff) {\n            EventHandler.off(element, event.type, fn)\n          }\n\n          return fn.apply(target, [event])\n        }\n      }\n    }\n\n    // To please ESLint\n    return null\n  }\n}\n\nfunction findHandler(events, handler, delegationSelector = null) {\n  const uidEventList = Object.keys(events)\n\n  for (let i = 0, len = uidEventList.length; i < len; i++) {\n    const event = events[uidEventList[i]]\n\n    if (event.originalHandler === handler && event.delegationSelector === delegationSelector) {\n      return event\n    }\n  }\n\n  return null\n}\n\nfunction normalizeParams(originalTypeEvent, handler, delegationFn) {\n  const delegation = typeof handler === 'string'\n  const originalHandler = delegation ? delegationFn : handler\n\n  // allow to get the native events from namespaced events ('click.bs.button' --> 'click')\n  let typeEvent = originalTypeEvent.replace(stripNameRegex, '')\n  const custom = customEvents[typeEvent]\n\n  if (custom) {\n    typeEvent = custom\n  }\n\n  const isNative = nativeEvents.indexOf(typeEvent) > -1\n\n  if (!isNative) {\n    typeEvent = originalTypeEvent\n  }\n\n  return [delegation, originalHandler, typeEvent]\n}\n\nfunction addHandler(element, originalTypeEvent, handler, delegationFn, oneOff) {\n  if (typeof originalTypeEvent !== 'string' || !element) {\n    return\n  }\n\n  if (!handler) {\n    handler = delegationFn\n    delegationFn = null\n  }\n\n  const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn)\n  const events = getEvent(element)\n  const handlers = events[typeEvent] || (events[typeEvent] = {})\n  const previousFn = findHandler(handlers, originalHandler, delegation ? handler : null)\n\n  if (previousFn) {\n    previousFn.oneOff = previousFn.oneOff && oneOff\n\n    return\n  }\n\n  const uid = getUidEvent(originalHandler, originalTypeEvent.replace(namespaceRegex, ''))\n  const fn = delegation ?\n    bootstrapDelegationHandler(element, handler, delegationFn) :\n    bootstrapHandler(element, handler)\n\n  fn.delegationSelector = delegation ? handler : null\n  fn.originalHandler = originalHandler\n  fn.oneOff = oneOff\n  fn.uidEvent = uid\n  handlers[uid] = fn\n\n  element.addEventListener(typeEvent, fn, delegation)\n}\n\nfunction removeHandler(element, events, typeEvent, handler, delegationSelector) {\n  const fn = findHandler(events[typeEvent], handler, delegationSelector)\n\n  if (!fn) {\n    return\n  }\n\n  element.removeEventListener(typeEvent, fn, Boolean(delegationSelector))\n  delete events[typeEvent][fn.uidEvent]\n}\n\nfunction removeNamespacedHandlers(element, events, typeEvent, namespace) {\n  const storeElementEvent = events[typeEvent] || {}\n\n  Object.keys(storeElementEvent)\n    .forEach(handlerKey => {\n      if (handlerKey.indexOf(namespace) > -1) {\n        const event = storeElementEvent[handlerKey]\n\n        removeHandler(element, events, typeEvent, event.originalHandler, event.delegationSelector)\n      }\n    })\n}\n\nconst EventHandler = {\n  on(element, event, handler, delegationFn) {\n    addHandler(element, event, handler, delegationFn, false)\n  },\n\n  one(element, event, handler, delegationFn) {\n    addHandler(element, event, handler, delegationFn, true)\n  },\n\n  off(element, originalTypeEvent, handler, delegationFn) {\n    if (typeof originalTypeEvent !== 'string' || !element) {\n      return\n    }\n\n    const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn)\n    const inNamespace = typeEvent !== originalTypeEvent\n    const events = getEvent(element)\n    const isNamespace = originalTypeEvent.charAt(0) === '.'\n\n    if (typeof originalHandler !== 'undefined') {\n      // Simplest case: handler is passed, remove that listener ONLY.\n      if (!events || !events[typeEvent]) {\n        return\n      }\n\n      removeHandler(element, events, typeEvent, 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-1\n\n    let jQueryEvent\n    let bubbles = true\n    let nativeDispatch = true\n    let defaultPrevented = false\n    let evt = null\n\n    if (inNamespace && typeof $ !== 'undefined') {\n      jQueryEvent = $.Event(event, args)\n\n      $(element).trigger(jQueryEvent)\n      bubbles = !jQueryEvent.isPropagationStopped()\n      nativeDispatch = !jQueryEvent.isImmediatePropagationStopped()\n      defaultPrevented = jQueryEvent.isDefaultPrevented()\n    }\n\n    if (isNative) {\n      evt = document.createEvent('HTMLEvents')\n      evt.initEvent(typeEvent, bubbles, true)\n    } else {\n      evt = createCustomEvent(event, {\n        bubbles,\n        cancelable: true\n      })\n    }\n\n    // merge custom informations in our event\n    if (typeof args !== 'undefined') {\n      Object.keys(args)\n        .forEach(key => {\n          Object.defineProperty(evt, key, {\n            get() {\n              return args[key]\n            }\n          })\n        })\n    }\n\n    if 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\ No newline at end of file
diff --git a/js/dist/dom/manipulator.js b/js/dist/dom/manipulator.js
index 6ce9bc46c..3c049e9e4 100644
--- a/js/dist/dom/manipulator.js
+++ b/js/dist/dom/manipulator.js
@@ -24,20 +24,35 @@
     return obj;
   }
 
-  function _objectSpread(target) {
+  function ownKeys(object, enumerableOnly) {
+    var keys = Object.keys(object);
+
+    if (Object.getOwnPropertySymbols) {
+      var symbols = Object.getOwnPropertySymbols(object);
+      if (enumerableOnly) symbols = symbols.filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+      });
+      keys.push.apply(keys, symbols);
+    }
+
+    return keys;
+  }
+
+  function _objectSpread2(target) {
     for (var i = 1; i < arguments.length; i++) {
       var source = arguments[i] != null ? arguments[i] : {};
-      var ownKeys = Object.keys(source);
 
-      if (typeof Object.getOwnPropertySymbols === 'function') {
-        ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        }));
+      if (i % 2) {
+        ownKeys(source, true).forEach(function (key) {
+          _defineProperty(target, key, source[key]);
+        });
+      } else if (Object.getOwnPropertyDescriptors) {
+        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+      } else {
+        ownKeys(source).forEach(function (key) {
+          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
+        });
       }
-
-      ownKeys.forEach(function (key) {
-        _defineProperty(target, key, source[key]);
-      });
     }
 
     return target;
@@ -87,7 +102,7 @@
         return {};
       }
 
-      var attributes = _objectSpread({}, element.dataset);
+      var attributes = _objectSpread2({}, element.dataset);
 
       Object.keys(attributes).forEach(function (key) {
         attributes[key] = normalizeData(attributes[key]);
diff --git a/js/dist/dom/manipulator.js.map b/js/dist/dom/manipulator.js.map
index 876736825..d63fc0e23 100644
--- a/js/dist/dom/manipulator.js.map
+++ b/js/dist/dom/manipulator.js.map
@@ -1 +1 @@
-{"version":3,"file":"manipulator.js","sources":["../../src/dom/manipulator.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): dom/manipulator.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nfunction normalizeData(val) {\n  if (val === 'true') {\n    return true\n  }\n\n  if (val === 'false') {\n    return false\n  }\n\n  if (val === Number(val).toString()) {\n    return Number(val)\n  }\n\n  if (val === '' || val === 'null') {\n    return null\n  }\n\n  return val\n}\n\nfunction normalizeDataKey(key) {\n  return key.replace(/[A-Z]/g, chr => chr.toLowerCase())\n}\n\nconst Manipulator = {\n  setDataAttribute(element, key, value) {\n    element.setAttribute(`data-${normalizeDataKey(key)}`, value)\n  },\n\n  removeDataAttribute(element, key) {\n    element.removeAttribute(`data-${normalizeDataKey(key)}`)\n  },\n\n  getDataAttributes(element) {\n    if (!element) {\n      return {}\n    }\n\n    const attributes = {\n      ...element.dataset\n    }\n\n    Object.keys(attributes).forEach(key => {\n      attributes[key] = normalizeData(attributes[key])\n    })\n\n    return attributes\n  },\n\n  getDataAttribute(element, key) {\n    return normalizeData(element.getAttribute(`data-${normalizeDataKey(key)}`))\n  },\n\n  offset(element) {\n    const rect = element.getBoundingClientRect()\n\n    return {\n      top: rect.top + document.body.scrollTop,\n      left: rect.left + document.body.scrollLeft\n    }\n  },\n\n  position(element) {\n    return {\n      top: element.offsetTop,\n      left: element.offsetLeft\n    }\n  },\n\n  toggleClass(element, className) {\n    if (!element) {\n      return\n    }\n\n    if (element.classList.contains(className)) {\n      element.classList.remove(className)\n    } else {\n      element.classList.add(className)\n    }\n  }\n}\n\nexport default Manipulator\n"],"names":["normalizeData","val","Number","toString","normalizeDataKey","key","replace","chr","toLowerCase","Manipulator","setDataAttribute","element","value","setAttribute","removeDataAttribute","removeAttribute","getDataAttributes","attributes","dataset","Object","keys","forEach","getDataAttribute","getAttribute","offset","rect","getBoundingClientRect","top","document","body","scrollTop","left","scrollLeft","position","offsetTop","offsetLeft","toggleClass","className","classList","contains","remove","add"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;EAAA;;;;;;EAOA,SAASA,aAAT,CAAuBC,GAAvB,EAA4B;EAC1B,MAAIA,GAAG,KAAK,MAAZ,EAAoB;EAClB,WAAO,IAAP;EACD;;EAED,MAAIA,GAAG,KAAK,OAAZ,EAAqB;EACnB,WAAO,KAAP;EACD;;EAED,MAAIA,GAAG,KAAKC,MAAM,CAACD,GAAD,CAAN,CAAYE,QAAZ,EAAZ,EAAoC;EAClC,WAAOD,MAAM,CAACD,GAAD,CAAb;EACD;;EAED,MAAIA,GAAG,KAAK,EAAR,IAAcA,GAAG,KAAK,MAA1B,EAAkC;EAChC,WAAO,IAAP;EACD;;EAED,SAAOA,GAAP;EACD;;EAED,SAASG,gBAAT,CAA0BC,GAA1B,EAA+B;EAC7B,SAAOA,GAAG,CAACC,OAAJ,CAAY,QAAZ,EAAsB,UAAAC,GAAG;EAAA,WAAIA,GAAG,CAACC,WAAJ,EAAJ;EAAA,GAAzB,CAAP;EACD;;EAED,IAAMC,WAAW,GAAG;EAClBC,EAAAA,gBADkB,4BACDC,OADC,EACQN,GADR,EACaO,KADb,EACoB;EACpCD,IAAAA,OAAO,CAACE,YAAR,WAA6BT,gBAAgB,CAACC,GAAD,CAA7C,EAAsDO,KAAtD;EACD,GAHiB;EAKlBE,EAAAA,mBALkB,+BAKEH,OALF,EAKWN,GALX,EAKgB;EAChCM,IAAAA,OAAO,CAACI,eAAR,WAAgCX,gBAAgB,CAACC,GAAD,CAAhD;EACD,GAPiB;EASlBW,EAAAA,iBATkB,6BASAL,OATA,EASS;EACzB,QAAI,CAACA,OAAL,EAAc;EACZ,aAAO,EAAP;EACD;;EAED,QAAMM,UAAU,qBACXN,OAAO,CAACO,OADG,CAAhB;;EAIAC,IAAAA,MAAM,CAACC,IAAP,CAAYH,UAAZ,EAAwBI,OAAxB,CAAgC,UAAAhB,GAAG,EAAI;EACrCY,MAAAA,UAAU,CAACZ,GAAD,CAAV,GAAkBL,aAAa,CAACiB,UAAU,CAACZ,GAAD,CAAX,CAA/B;EACD,KAFD;EAIA,WAAOY,UAAP;EACD,GAvBiB;EAyBlBK,EAAAA,gBAzBkB,4BAyBDX,OAzBC,EAyBQN,GAzBR,EAyBa;EAC7B,WAAOL,aAAa,CAACW,OAAO,CAACY,YAAR,WAA6BnB,gBAAgB,CAACC,GAAD,CAA7C,CAAD,CAApB;EACD,GA3BiB;EA6BlBmB,EAAAA,MA7BkB,kBA6BXb,OA7BW,EA6BF;EACd,QAAMc,IAAI,GAAGd,OAAO,CAACe,qBAAR,EAAb;EAEA,WAAO;EACLC,MAAAA,GAAG,EAAEF,IAAI,CAACE,GAAL,GAAWC,QAAQ,CAACC,IAAT,CAAcC,SADzB;EAELC,MAAAA,IAAI,EAAEN,IAAI,CAACM,IAAL,GAAYH,QAAQ,CAACC,IAAT,CAAcG;EAF3B,KAAP;EAID,GApCiB;EAsClBC,EAAAA,QAtCkB,oBAsCTtB,OAtCS,EAsCA;EAChB,WAAO;EACLgB,MAAAA,GAAG,EAAEhB,OAAO,CAACuB,SADR;EAELH,MAAAA,IAAI,EAAEpB,OAAO,CAACwB;EAFT,KAAP;EAID,GA3CiB;EA6ClBC,EAAAA,WA7CkB,uBA6CNzB,OA7CM,EA6CG0B,SA7CH,EA6Cc;EAC9B,QAAI,CAAC1B,OAAL,EAAc;EACZ;EACD;;EAED,QAAIA,OAAO,CAAC2B,SAAR,CAAkBC,QAAlB,CAA2BF,SAA3B,CAAJ,EAA2C;EACzC1B,MAAAA,OAAO,CAAC2B,SAAR,CAAkBE,MAAlB,CAAyBH,SAAzB;EACD,KAFD,MAEO;EACL1B,MAAAA,OAAO,CAAC2B,SAAR,CAAkBG,GAAlB,CAAsBJ,SAAtB;EACD;EACF;EAvDiB,CAApB;;;;;;;;"}
\ No newline at end of file
+{"version":3,"file":"manipulator.js","sources":["../../src/dom/manipulator.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): dom/manipulator.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nfunction normalizeData(val) {\n  if (val === 'true') {\n    return true\n  }\n\n  if (val === 'false') {\n    return false\n  }\n\n  if (val === Number(val).toString()) {\n    return Number(val)\n  }\n\n  if (val === '' || val === 'null') {\n    return null\n  }\n\n  return val\n}\n\nfunction normalizeDataKey(key) {\n  return key.replace(/[A-Z]/g, chr => chr.toLowerCase())\n}\n\nconst Manipulator = {\n  setDataAttribute(element, key, value) {\n    element.setAttribute(`data-${normalizeDataKey(key)}`, value)\n  },\n\n  removeDataAttribute(element, key) {\n    element.removeAttribute(`data-${normalizeDataKey(key)}`)\n  },\n\n  getDataAttributes(element) {\n    if (!element) {\n      return {}\n    }\n\n    const attributes = {\n      ...element.dataset\n    }\n\n    Object.keys(attributes).forEach(key => {\n      attributes[key] = normalizeData(attributes[key])\n    })\n\n    return attributes\n  },\n\n  getDataAttribute(element, key) {\n    return normalizeData(element.getAttribute(`data-${normalizeDataKey(key)}`))\n  },\n\n  offset(element) {\n    const rect = element.getBoundingClientRect()\n\n    return {\n      top: rect.top + document.body.scrollTop,\n      left: rect.left + document.body.scrollLeft\n    }\n  },\n\n  position(element) {\n    return {\n      top: element.offsetTop,\n      left: element.offsetLeft\n    }\n  },\n\n  toggleClass(element, className) {\n    if (!element) {\n      return\n    }\n\n    if (element.classList.contains(className)) {\n      element.classList.remove(className)\n    } else {\n      element.classList.add(className)\n    }\n  }\n}\n\nexport default Manipulator\n"],"names":["normalizeData","val","Number","toString","normalizeDataKey","key","replace","chr","toLowerCase","Manipulator","setDataAttribute","element","value","setAttribute","removeDataAttribute","removeAttribute","getDataAttributes","attributes","dataset","Object","keys","forEach","getDataAttribute","getAttribute","offset","rect","getBoundingClientRect","top","document","body","scrollTop","left","scrollLeft","position","offsetTop","offsetLeft","toggleClass","className","classList","contains","remove","add"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;EAAA;;;;;;EAOA,SAASA,aAAT,CAAuBC,GAAvB,EAA4B;EAC1B,MAAIA,GAAG,KAAK,MAAZ,EAAoB;EAClB,WAAO,IAAP;EACD;;EAED,MAAIA,GAAG,KAAK,OAAZ,EAAqB;EACnB,WAAO,KAAP;EACD;;EAED,MAAIA,GAAG,KAAKC,MAAM,CAACD,GAAD,CAAN,CAAYE,QAAZ,EAAZ,EAAoC;EAClC,WAAOD,MAAM,CAACD,GAAD,CAAb;EACD;;EAED,MAAIA,GAAG,KAAK,EAAR,IAAcA,GAAG,KAAK,MAA1B,EAAkC;EAChC,WAAO,IAAP;EACD;;EAED,SAAOA,GAAP;EACD;;EAED,SAASG,gBAAT,CAA0BC,GAA1B,EAA+B;EAC7B,SAAOA,GAAG,CAACC,OAAJ,CAAY,QAAZ,EAAsB,UAAAC,GAAG;EAAA,WAAIA,GAAG,CAACC,WAAJ,EAAJ;EAAA,GAAzB,CAAP;EACD;;EAED,IAAMC,WAAW,GAAG;EAClBC,EAAAA,gBADkB,4BACDC,OADC,EACQN,GADR,EACaO,KADb,EACoB;EACpCD,IAAAA,OAAO,CAACE,YAAR,WAA6BT,gBAAgB,CAACC,GAAD,CAA7C,EAAsDO,KAAtD;EACD,GAHiB;EAKlBE,EAAAA,mBALkB,+BAKEH,OALF,EAKWN,GALX,EAKgB;EAChCM,IAAAA,OAAO,CAACI,eAAR,WAAgCX,gBAAgB,CAACC,GAAD,CAAhD;EACD,GAPiB;EASlBW,EAAAA,iBATkB,6BASAL,OATA,EASS;EACzB,QAAI,CAACA,OAAL,EAAc;EACZ,aAAO,EAAP;EACD;;EAED,QAAMM,UAAU,sBACXN,OAAO,CAACO,OADG,CAAhB;;EAIAC,IAAAA,MAAM,CAACC,IAAP,CAAYH,UAAZ,EAAwBI,OAAxB,CAAgC,UAAAhB,GAAG,EAAI;EACrCY,MAAAA,UAAU,CAACZ,GAAD,CAAV,GAAkBL,aAAa,CAACiB,UAAU,CAACZ,GAAD,CAAX,CAA/B;EACD,KAFD;EAIA,WAAOY,UAAP;EACD,GAvBiB;EAyBlBK,EAAAA,gBAzBkB,4BAyBDX,OAzBC,EAyBQN,GAzBR,EAyBa;EAC7B,WAAOL,aAAa,CAACW,OAAO,CAACY,YAAR,WAA6BnB,gBAAgB,CAACC,GAAD,CAA7C,CAAD,CAApB;EACD,GA3BiB;EA6BlBmB,EAAAA,MA7BkB,kBA6BXb,OA7BW,EA6BF;EACd,QAAMc,IAAI,GAAGd,OAAO,CAACe,qBAAR,EAAb;EAEA,WAAO;EACLC,MAAAA,GAAG,EAAEF,IAAI,CAACE,GAAL,GAAWC,QAAQ,CAACC,IAAT,CAAcC,SADzB;EAELC,MAAAA,IAAI,EAAEN,IAAI,CAACM,IAAL,GAAYH,QAAQ,CAACC,IAAT,CAAcG;EAF3B,KAAP;EAID,GApCiB;EAsClBC,EAAAA,QAtCkB,oBAsCTtB,OAtCS,EAsCA;EAChB,WAAO;EACLgB,MAAAA,GAAG,EAAEhB,OAAO,CAACuB,SADR;EAELH,MAAAA,IAAI,EAAEpB,OAAO,CAACwB;EAFT,KAAP;EAID,GA3CiB;EA6ClBC,EAAAA,WA7CkB,uBA6CNzB,OA7CM,EA6CG0B,SA7CH,EA6Cc;EAC9B,QAAI,CAAC1B,OAAL,EAAc;EACZ;EACD;;EAED,QAAIA,OAAO,CAAC2B,SAAR,CAAkBC,QAAlB,CAA2BF,SAA3B,CAAJ,EAA2C;EACzC1B,MAAAA,OAAO,CAAC2B,SAAR,CAAkBE,MAAlB,CAAyBH,SAAzB;EACD,KAFD,MAEO;EACL1B,MAAAA,OAAO,CAAC2B,SAAR,CAAkBG,GAAlB,CAAsBJ,SAAtB;EACD;EACF;EAvDiB,CAApB;;;;;;;;"}
\ No newline at end of file
diff --git a/js/dist/dom/selector-engine.js b/js/dist/dom/selector-engine.js
index afcd49e30..6a956b6d9 100644
--- a/js/dist/dom/selector-engine.js
+++ b/js/dist/dom/selector-engine.js
@@ -48,10 +48,6 @@
         element = document.documentElement;
       }
 
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       return polyfill_js.find.call(element, selector);
     },
     findOne: function findOne(selector, element) {
@@ -59,29 +55,17 @@
         element = document.documentElement;
       }
 
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       return polyfill_js.findOne.call(element, selector);
     },
     children: function children(element, selector) {
       var _this = this;
 
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       var children = makeArray(element.children);
       return children.filter(function (child) {
         return _this.matches(child, selector);
       });
     },
     parents: function parents(element, selector) {
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       var parents = [];
       var ancestor = element.parentNode;
 
@@ -96,17 +80,9 @@
       return parents;
     },
     closest: function closest(element, selector) {
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       return polyfill_js.closest.call(element, selector);
     },
     prev: function prev(element, selector) {
-      if (typeof selector !== 'string') {
-        return null;
-      }
-
       var siblings = [];
       var previous = element.previousSibling;
 
diff --git a/js/dist/dom/selector-engine.js.map b/js/dist/dom/selector-engine.js.map
index a9fa28e07..0ba6771b6 100644
--- a/js/dist/dom/selector-engine.js.map
+++ b/js/dist/dom/selector-engine.js.map
@@ -1 +1 @@
-{"version":3,"file":"selector-engine.js","sources":["../../src/util/index.js","../../src/dom/selector-engine.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): util/index.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst MAX_UID = 1000000\nconst MILLISECONDS_MULTIPLIER = 1000\nconst TRANSITION_END = 'transitionend'\nconst { jQuery } = window\n\n// Shoutout AngusCroll (https://goo.gl/pxwQGp)\nconst toType = obj => ({}.toString.call(obj).match(/\\s([a-z]+)/i)[1].toLowerCase())\n\n/**\n * --------------------------------------------------------------------------\n * Public Util Api\n * --------------------------------------------------------------------------\n */\n\nconst getUID = prefix => {\n  do {\n    // eslint-disable-next-line no-bitwise\n    prefix += ~~(Math.random() * MAX_UID) // \"~~\" acts like a faster Math.floor() here\n  } while (document.getElementById(prefix))\n\n  return prefix\n}\n\nconst getSelectorFromElement = element => {\n  let selector = element.getAttribute('data-target')\n\n  if (!selector || selector === '#') {\n    const hrefAttr = element.getAttribute('href')\n\n    selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : ''\n  }\n\n  try {\n    return document.querySelector(selector) ? selector : null\n  } catch (error) {\n    return null\n  }\n}\n\nconst getTransitionDurationFromElement = element => {\n  if (!element) {\n    return 0\n  }\n\n  // Get transition-duration of the element\n  let {\n    transitionDuration,\n    transitionDelay\n  } = window.getComputedStyle(element)\n\n  const floatTransitionDuration = parseFloat(transitionDuration)\n  const floatTransitionDelay = parseFloat(transitionDelay)\n\n  // Return 0 if element or transition duration is not found\n  if (!floatTransitionDuration && !floatTransitionDelay) {\n    return 0\n  }\n\n  // If multiple durations are defined, take the first\n  transitionDuration = transitionDuration.split(',')[0]\n  transitionDelay = transitionDelay.split(',')[0]\n\n  return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER\n}\n\nconst triggerTransitionEnd = element => {\n  const evt = document.createEvent('HTMLEvents')\n\n  evt.initEvent(TRANSITION_END, true, true)\n  element.dispatchEvent(evt)\n}\n\nconst isElement = obj => (obj[0] || obj).nodeType\n\nconst emulateTransitionEnd = (element, duration) => {\n  let called = false\n  const durationPadding = 5\n  const emulatedDuration = duration + durationPadding\n  function listener() {\n    called = true\n    element.removeEventListener(TRANSITION_END, listener)\n  }\n\n  element.addEventListener(TRANSITION_END, listener)\n  setTimeout(() => {\n    if (!called) {\n      triggerTransitionEnd(element)\n    }\n  }, emulatedDuration)\n}\n\nconst typeCheckConfig = (componentName, config, configTypes) => {\n  Object.keys(configTypes)\n    .forEach(property => {\n      const expectedTypes = configTypes[property]\n      const value = config[property]\n      const valueType = value && isElement(value) ?\n        'element' :\n        toType(value)\n\n      if (!new RegExp(expectedTypes).test(valueType)) {\n        throw new Error(\n          `${componentName.toUpperCase()}: ` +\n          `Option \"${property}\" provided type \"${valueType}\" ` +\n          `but expected type \"${expectedTypes}\".`)\n      }\n    })\n}\n\nconst makeArray = nodeList => {\n  if (!nodeList) {\n    return []\n  }\n\n  return [].slice.call(nodeList)\n}\n\nconst isVisible = element => {\n  if (!element) {\n    return false\n  }\n\n  if (element.style && element.parentNode && element.parentNode.style) {\n    return element.style.display !== 'none' &&\n      element.parentNode.style.display !== 'none' &&\n      element.style.visibility !== 'hidden'\n  }\n\n  return false\n}\n\nconst findShadowRoot = element => {\n  if (!document.documentElement.attachShadow) {\n    return null\n  }\n\n  // Can find the shadow root otherwise it'll return the document\n  if (typeof element.getRootNode === 'function') {\n    const root = element.getRootNode()\n    return root instanceof ShadowRoot ? root : null\n  }\n\n  if (element instanceof ShadowRoot) {\n    return element\n  }\n\n  // when we don't find a shadow root\n  if (!element.parentNode) {\n    return null\n  }\n\n  return findShadowRoot(element.parentNode)\n}\n\n// eslint-disable-next-line no-empty-function\nconst noop = () => function () {}\n\nconst reflow = element => element.offsetHeight\n\nexport {\n  jQuery,\n  TRANSITION_END,\n  getUID,\n  getSelectorFromElement,\n  getTransitionDurationFromElement,\n  triggerTransitionEnd,\n  isElement,\n  emulateTransitionEnd,\n  typeCheckConfig,\n  makeArray,\n  isVisible,\n  findShadowRoot,\n  noop,\n  reflow\n}\n","/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): dom/selector-engine.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport { find as findFn, findOne, matches, closest } from './polyfill'\nimport { makeArray } from '../util/index'\n\n/**\n * ------------------------------------------------------------------------\n * Constants\n * ------------------------------------------------------------------------\n */\n\nconst NODE_TEXT = 3\n\nconst SelectorEngine = {\n  matches(element, selector) {\n    return matches.call(element, selector)\n  },\n\n  find(selector, element = document.documentElement) {\n    if (typeof selector !== 'string') {\n      return null\n    }\n\n    return findFn.call(element, selector)\n  },\n\n  findOne(selector, element = document.documentElement) {\n    if (typeof selector !== 'string') {\n      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siblings = []\n    let previous = element.previousSibling\n\n    while (previous && previous.nodeType === Node.ELEMENT_NODE && previous.nodeType !== NODE_TEXT) {\n      if (this.matches(previous, selector)) {\n        siblings.push(previous)\n      }\n\n      previous = previous.previousSibling\n    }\n\n    return siblings\n  }\n}\n\nexport default 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+{"version":3,"file":"selector-engine.js","sources":["../../src/util/index.js","../../src/dom/selector-engine.js"],"sourcesContent":["/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.3.1): util/index.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst MAX_UID = 1000000\nconst MILLISECONDS_MULTIPLIER = 1000\nconst TRANSITION_END = 'transitionend'\nconst { jQuery } = window\n\n// Shoutout AngusCroll (https://goo.gl/pxwQGp)\nconst toType = obj => ({}.toString.call(obj).match(/\\s([a-z]+)/i)[1].toLowerCase())\n\n/**\n * --------------------------------------------------------------------------\n * Public Util Api\n * --------------------------------------------------------------------------\n */\n\nconst getUID = prefix => {\n  do {\n    // eslint-disable-next-line no-bitwise\n    prefix += ~~(Math.random() * MAX_UID) // \"~~\" acts like a faster Math.floor() here\n  } while (document.getElementById(prefix))\n\n  return prefix\n}\n\nconst getSelectorFromElement = element => {\n  let selector = element.getAttribute('data-target')\n\n  if (!selector || selector === '#') {\n    const hrefAttr = element.getAttribute('href')\n\n    selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : ''\n  }\n\n  try {\n    return document.querySelector(selector) ? selector : null\n  } catch (error) {\n    return null\n  }\n}\n\nconst getTransitionDurationFromElement = element => {\n  if (!element) {\n    return 0\n  }\n\n  // Get transition-duration of the element\n  let {\n    transitionDuration,\n    transitionDelay\n  } = window.getComputedStyle(element)\n\n  const floatTransitionDuration = parseFloat(transitionDuration)\n  const floatTransitionDelay = parseFloat(transitionDelay)\n\n  // Return 0 if element or transition duration is not found\n  if (!floatTransitionDuration && !floatTransitionDelay) {\n    return 0\n  }\n\n  // If multiple durations are defined, take the first\n  transitionDuration = transitionDuration.split(',')[0]\n  transitionDelay = transitionDelay.split(',')[0]\n\n  return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER\n}\n\nconst triggerTransitionEnd = element => {\n  const evt = document.createEvent('HTMLEvents')\n\n  evt.initEvent(TRANSITION_END, true, true)\n  element.dispatchEvent(evt)\n}\n\nconst isElement = obj => (obj[0] || obj).nodeType\n\nconst emulateTransitionEnd = (element, duration) => {\n  let called = false\n  const durationPadding = 5\n  const emulatedDuration = duration + durationPadding\n  function listener() {\n    called = true\n    element.removeEventListener(TRANSITION_END, listener)\n  }\n\n  element.addEventListener(TRANSITION_END, listener)\n  setTimeout(() => {\n    if (!called) {\n      triggerTransitionEnd(element)\n    }\n  }, emulatedDuration)\n}\n\nconst typeCheckConfig = (componentName, config, configTypes) => {\n  Object.keys(configTypes)\n    .forEach(property => {\n      const expectedTypes = configTypes[property]\n      const value = config[property]\n      const valueType = value && isElement(value) ?\n        'element' :\n        toType(value)\n\n      if (!new RegExp(expectedTypes).test(valueType)) {\n        throw new Error(\n          `${componentName.toUpperCase()}: ` +\n          `Option \"${property}\" provided type \"${valueType}\" ` +\n          `but expected type \"${expectedTypes}\".`)\n      }\n    })\n}\n\nconst makeArray = nodeList => {\n  if (!nodeList) {\n    return []\n  }\n\n  return [].slice.call(nodeList)\n}\n\nconst isVisible = element => {\n  if (!element) {\n    return false\n  }\n\n  if (element.style && element.parentNode && element.parentNode.style) {\n    return element.style.display !== 'none' &&\n      element.parentNode.style.display !== 'none' &&\n      element.style.visibility !== 'hidden'\n  }\n\n  return false\n}\n\nconst findShadowRoot = element => {\n  if (!document.documentElement.attachShadow) {\n    return null\n  }\n\n  // Can find the shadow root otherwise it'll return the document\n  if (typeof element.getRootNode === 'function') {\n    const root = element.getRootNode()\n    return root instanceof ShadowRoot ? 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