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leading/trailing spaces\n    .trim() // convert spaces\n    .replace(/[-\\s]+/g, options.replacement || '-');\n    return options.lower ? slug.toLowerCase() : slug;\n  }\n\n  replace.extend = function (customMap) {\n    for (var key in customMap) {\n      charMap[key] = customMap[key];\n    }\n  };\n\n  return replace;\n});","/**\n * Tocbot\n * Tocbot creates a toble of contents based on HTML headings on a page,\n * this allows users to easily jump to different sections of the document.\n * Tocbot was inspired by tocify (http://gregfranko.com/jquery.tocify.js/).\n * The main differences are that it works natively without any need for jquery or jquery UI).\n *\n * @author Tim Scanlin\n */\n\n/* globals define */\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    define([], factory(root));\n  } else if (typeof exports === 'object') {\n    module.exports = factory(root);\n  } else {\n    root.tocbot = factory(root);\n  }\n})(typeof global !== 'undefined' ? global : this.window || this.global, function (root) {\n  'use strict'; // Default options.\n\n  var defaultOptions = require('./default-options.js'); // Object to store current options.\n\n\n  var options = {}; // Object for public APIs.\n\n  var tocbot = {};\n\n  var BuildHtml = require('./build-html.js');\n\n  var ParseContent = require('./parse-content.js'); // Keep these variables at top scope once options are passed in.\n\n\n  var buildHtml;\n  var parseContent; // Just return if its not a browser.\n\n  if (typeof window === 'undefined') {\n    return;\n  }\n\n  var supports = !!root.document.querySelector && !!root.addEventListener; // Feature test\n\n  var headingsArray; // From: https://github.com/Raynos/xtend\n\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n\n  function extend() {\n    var target = {};\n\n    for (var i = 0; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  } // From: https://remysharp.com/2010/07/21/throttling-function-calls\n\n\n  function throttle(fn, threshhold, scope) {\n    threshhold || (threshhold = 250);\n    var last;\n    var deferTimer;\n    return function () {\n      var context = scope || this;\n      var now = +new Date();\n      var args = arguments;\n\n      if (last && now < last + threshhold) {\n        // hold on to it\n        clearTimeout(deferTimer);\n        deferTimer = setTimeout(function () {\n          last = now;\n          fn.apply(context, args);\n        }, threshhold);\n      } else {\n        last = now;\n        fn.apply(context, args);\n      }\n    };\n  }\n  /**\n   * Destroy tocbot.\n   */\n\n\n  tocbot.destroy = function () {\n    if (!options.skipRendering) {\n      // Clear HTML.\n      try {\n        document.querySelector(options.tocSelector).innerHTML = '';\n      } catch (e) {\n        console.warn('Element not found: ' + options.tocSelector); // eslint-disable-line\n      }\n    } // Remove event listeners.\n\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).removeEventListener('scroll', this._scrollListener, false);\n      document.querySelector(options.scrollContainer).removeEventListener('resize', this._scrollListener, false);\n\n      if (buildHtml) {\n        document.querySelector(options.scrollContainer).removeEventListener('click', this._clickListener, false);\n      }\n    } else {\n      document.removeEventListener('scroll', this._scrollListener, false);\n      document.removeEventListener('resize', this._scrollListener, false);\n\n      if (buildHtml) {\n        document.removeEventListener('click', this._clickListener, false);\n      }\n    }\n  };\n  /**\n   * Initialize tocbot.\n   * @param {object} customOptions\n   */\n\n\n  tocbot.init = function (customOptions) {\n    // feature test\n    if (!supports) {\n      return;\n    } // Merge defaults with user options.\n    // Set to options variable at the top.\n\n\n    options = extend(defaultOptions, customOptions || {});\n    this.options = options;\n    this.state = {}; // Init smooth scroll if enabled (default).\n\n    if (options.scrollSmooth) {\n      options.duration = options.scrollSmoothDuration;\n      options.offset = options.scrollSmoothOffset;\n      tocbot.scrollSmooth = require('./scroll-smooth').initSmoothScrolling(options);\n    } // Pass options to these modules.\n\n\n    buildHtml = BuildHtml(options);\n    parseContent = ParseContent(options); // For testing purposes.\n\n    this._buildHtml = buildHtml;\n    this._parseContent = parseContent; // Destroy it if it exists first.\n\n    tocbot.destroy(); // Get headings array.\n\n    headingsArray = parseContent.selectHeadings(options.contentSelector, options.headingSelector); // Return if no headings are found.\n\n    if (headingsArray === null) {\n      return;\n    } // Build nested headings array.\n\n\n    var nestedHeadingsObj = parseContent.nestHeadingsArray(headingsArray);\n    var nestedHeadings = nestedHeadingsObj.nest; // Render.\n\n    if (!options.skipRendering) {\n      buildHtml.render(options.tocSelector, nestedHeadings);\n    } // Update Sidebar and bind listeners.\n\n\n    this._scrollListener = throttle(function (e) {\n      buildHtml.updateToc(headingsArray);\n      var isTop = e && e.target && e.target.scrollingElement && e.target.scrollingElement.scrollTop === 0;\n\n      if (e && (e.eventPhase === 0 || e.currentTarget === null) || isTop) {\n        buildHtml.updateToc(headingsArray);\n\n        if (options.scrollEndCallback) {\n          options.scrollEndCallback(e);\n        }\n      }\n    }, options.throttleTimeout);\n\n    this._scrollListener();\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).addEventListener('scroll', this._scrollListener, false);\n      document.querySelector(options.scrollContainer).addEventListener('resize', this._scrollListener, false);\n    } else {\n      document.addEventListener('scroll', this._scrollListener, false);\n      document.addEventListener('resize', this._scrollListener, false);\n    } // Bind click listeners to disable animation.\n\n\n    var timeout = null;\n    this._clickListener = throttle(function (event) {\n      if (options.scrollSmooth) {\n        buildHtml.disableTocAnimation(event);\n      }\n\n      buildHtml.updateToc(headingsArray); // Timeout to re-enable the animation.\n\n      timeout && clearTimeout(timeout);\n      timeout = setTimeout(function () {\n        buildHtml.enableTocAnimation();\n      }, options.scrollSmoothDuration);\n    }, options.throttleTimeout);\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).addEventListener('click', this._clickListener, false);\n    } else {\n      document.addEventListener('click', this._clickListener, false);\n    }\n\n    return this;\n  };\n  /**\n   * Refresh tocbot.\n   */\n\n\n  tocbot.refresh = function (customOptions) {\n    tocbot.destroy();\n    tocbot.init(customOptions || this.options);\n  }; // Make tocbot available globally.\n\n\n  root.tocbot = tocbot;\n  return tocbot;\n});","module.exports = {\n  // Where to render the table of contents.\n  tocSelector: '.js-toc',\n  // Where to grab the headings to build the table of contents.\n  contentSelector: '.js-toc-content',\n  // Which headings to grab inside of the contentSelector element.\n  headingSelector: 'h1, h2, h3',\n  // Headings that match the ignoreSelector will be skipped.\n  ignoreSelector: '.js-toc-ignore',\n  // For headings inside relative or absolute positioned containers within content\n  hasInnerContainers: false,\n  // Main class to add to links.\n  linkClass: 'toc-link',\n  // Extra classes to add to links.\n  extraLinkClasses: '',\n  // Class to add to active links,\n  // the link corresponding to the top most heading on the page.\n  activeLinkClass: 'is-active-link',\n  // Main class to add to lists.\n  listClass: 'toc-list',\n  // Extra classes to add to lists.\n  extraListClasses: '',\n  // Class that gets added when a list should be collapsed.\n  isCollapsedClass: 'is-collapsed',\n  // Class that gets added when a list should be able\n  // to be collapsed but isn't necessarily collpased.\n  collapsibleClass: 'is-collapsible',\n  // Class to add to list items.\n  listItemClass: 'toc-list-item',\n  // Class to add to active list items.\n  activeListItemClass: 'is-active-li',\n  // How many heading levels should not be collpased.\n  // For example, number 6 will show everything since\n  // there are only 6 heading levels and number 0 will collpase them all.\n  // The sections that are hidden will open\n  // and close as you scroll to headings within them.\n  collapseDepth: 0,\n  // Smooth scrolling enabled.\n  scrollSmooth: true,\n  // Smooth scroll duration.\n  scrollSmoothDuration: 420,\n  // Smooth scroll offset.\n  scrollSmoothOffset: 0,\n  // Callback for scroll end.\n  scrollEndCallback: function scrollEndCallback(e) {},\n  // Headings offset between the headings and the top of the document (this is meant for minor adjustments).\n  headingsOffset: 1,\n  // Timeout between events firing to make sure it's\n  // not too rapid (for performance reasons).\n  throttleTimeout: 50,\n  // Element to add the positionFixedClass to.\n  positionFixedSelector: null,\n  // Fixed position class to add to make sidebar fixed after scrolling\n  // down past the fixedSidebarOffset.\n  positionFixedClass: 'is-position-fixed',\n  // fixedSidebarOffset can be any number but by default is set\n  // to auto which sets the fixedSidebarOffset to the sidebar\n  // element's offsetTop from the top of the document on init.\n  fixedSidebarOffset: 'auto',\n  // includeHtml can be set to true to include the HTML markup from the\n  // heading node instead of just including the textContent.\n  includeHtml: false,\n  // onclick function to apply to all links in toc. will be called with\n  // the event as the first parameter, and this can be used to stop,\n  // propagation, prevent default or perform action\n  onClick: false,\n  // orderedList can be set to false to generate unordered lists (ul)\n  // instead of ordered lists (ol)\n  orderedList: true,\n  // If there is a fixed article scroll container, set to calculate titles' offset\n  scrollContainer: null,\n  // prevent ToC DOM rendering if it's already rendered by an external system\n  skipRendering: false\n};","require(\"core-js/modules/es6.regexp.split\");\n\n/**\n * This file is responsible for building the DOM and updating DOM state.\n *\n * @author Tim Scanlin\n */\nmodule.exports = function (options) {\n  var forEach = [].forEach;\n  var some = [].some;\n  var body = document.body;\n  var currentlyHighlighting = true;\n  var SPACE_CHAR = ' ';\n  /**\n   * Create link and list elements.\n   * @param {Object} d\n   * @param {HTMLElement} container\n   * @return {HTMLElement}\n   */\n\n  function createEl(d, container) {\n    var link = container.appendChild(createLink(d));\n\n    if (d.children.length) {\n      var list = createList(d.isCollapsed);\n      d.children.forEach(function (child) {\n        createEl(child, list);\n      });\n      link.appendChild(list);\n    }\n  }\n  /**\n   * Render nested heading array data into a given selector.\n   * @param {String} selector\n   * @param {Array} data\n   * @return {HTMLElement}\n   */\n\n\n  function render(selector, data) {\n    var collapsed = false;\n    var container = createList(collapsed);\n    data.forEach(function (d) {\n      createEl(d, container);\n    });\n    var parent = document.querySelector(selector); // Return if no parent is found.\n\n    if (parent === null) {\n      return;\n    } // Remove existing child if it exists.\n\n\n    if (parent.firstChild) {\n      parent.removeChild(parent.firstChild);\n    } // Just return the parent and don't append the list if no links are found.\n\n\n    if (data.length === 0) {\n      return parent;\n    } // Append the Elements that have been created\n\n\n    return parent.appendChild(container);\n  }\n  /**\n   * Create link element.\n   * @param {Object} data\n   * @return {HTMLElement}\n   */\n\n\n  function createLink(data) {\n    var item = document.createElement('li');\n    var a = document.createElement('a');\n\n    if (options.listItemClass) {\n      item.setAttribute('class', options.listItemClass);\n    }\n\n    if (options.onClick) {\n      a.onclick = options.onClick;\n    }\n\n    if (options.includeHtml && data.childNodes.length) {\n      forEach.call(data.childNodes, function (node) {\n        a.appendChild(node.cloneNode(true));\n      });\n    } else {\n      // Default behavior.\n      a.textContent = data.textContent;\n    }\n\n    a.setAttribute('href', '#' + data.id);\n    a.setAttribute('class', options.linkClass + SPACE_CHAR + 'node-name--' + data.nodeName + SPACE_CHAR + options.extraLinkClasses);\n    item.appendChild(a);\n    return item;\n  }\n  /**\n   * Create list element.\n   * @param {Boolean} isCollapsed\n   * @return {HTMLElement}\n   */\n\n\n  function createList(isCollapsed) {\n    var listElement = options.orderedList ? 'ol' : 'ul';\n    var list = document.createElement(listElement);\n    var classes = options.listClass + SPACE_CHAR + options.extraListClasses;\n\n    if (isCollapsed) {\n      classes += SPACE_CHAR + options.collapsibleClass;\n      classes += SPACE_CHAR + options.isCollapsedClass;\n    }\n\n    list.setAttribute('class', classes);\n    return list;\n  }\n  /**\n   * Update fixed sidebar class.\n   * @return {HTMLElement}\n   */\n\n\n  function updateFixedSidebarClass() {\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      var top = document.querySelector(options.scrollContainer).scrollTop;\n    } else {\n      var top = document.documentElement.scrollTop || body.scrollTop;\n    }\n\n    var posFixedEl = document.querySelector(options.positionFixedSelector);\n\n    if (options.fixedSidebarOffset === 'auto') {\n      options.fixedSidebarOffset = document.querySelector(options.tocSelector).offsetTop;\n    }\n\n    if (top > options.fixedSidebarOffset) {\n      if (posFixedEl.className.indexOf(options.positionFixedClass) === -1) {\n        posFixedEl.className += SPACE_CHAR + options.positionFixedClass;\n      }\n    } else {\n      posFixedEl.className = posFixedEl.className.split(SPACE_CHAR + options.positionFixedClass).join('');\n    }\n  }\n  /**\n   * Get top position of heading\n   * @param {HTMLElement}\n   * @return {integer} position\n   */\n\n\n  function getHeadingTopPos(obj) {\n    var position = 0;\n\n    if (obj != document.querySelector(options.contentSelector && obj != null)) {\n      position = obj.offsetTop;\n      if (options.hasInnerContainers) position += getHeadingTopPos(obj.offsetParent);\n    }\n\n    return position;\n  }\n  /**\n   * Update TOC highlighting and collpased groupings.\n   */\n\n\n  function updateToc(headingsArray) {\n    // If a fixed content container was set\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      var top = document.querySelector(options.scrollContainer).scrollTop;\n    } else {\n      var top = document.documentElement.scrollTop || body.scrollTop;\n    } // Add fixed class at offset\n\n\n    if (options.positionFixedSelector) {\n      updateFixedSidebarClass();\n    } // Get the top most heading currently visible on the page so we know what to highlight.\n\n\n    var headings = headingsArray;\n    var topHeader; // Using some instead of each so that we can escape early.\n\n    if (currentlyHighlighting && document.querySelector(options.tocSelector) !== null && headings.length > 0) {\n      some.call(headings, function (heading, i) {\n        if (getHeadingTopPos(heading) > top + options.headingsOffset + 10) {\n          // Don't allow negative index value.\n          var index = i === 0 ? i : i - 1;\n          topHeader = headings[index];\n          return true;\n        } else if (i === headings.length - 1) {\n          // This allows scrolling for the last heading on the page.\n          topHeader = headings[headings.length - 1];\n          return true;\n        }\n      }); // Remove the active class from the other tocLinks.\n\n      var tocLinks = document.querySelector(options.tocSelector).querySelectorAll('.' + options.linkClass);\n      forEach.call(tocLinks, function (tocLink) {\n        tocLink.className = tocLink.className.split(SPACE_CHAR + options.activeLinkClass).join('');\n      });\n      var tocLis = document.querySelector(options.tocSelector).querySelectorAll('.' + options.listItemClass);\n      forEach.call(tocLis, function (tocLi) {\n        tocLi.className = tocLi.className.split(SPACE_CHAR + options.activeListItemClass).join('');\n      }); // Add the active class to the active tocLink.\n\n      var activeTocLink = document.querySelector(options.tocSelector).querySelector('.' + options.linkClass + '.node-name--' + topHeader.nodeName + '[href=\"#' + topHeader.id + '\"]');\n\n      if (activeTocLink.className.indexOf(options.activeLinkClass) === -1) {\n        activeTocLink.className += SPACE_CHAR + options.activeLinkClass;\n      }\n\n      var li = activeTocLink.parentNode;\n\n      if (li && li.className.indexOf(options.activeListItemClass) === -1) {\n        li.className += SPACE_CHAR + options.activeListItemClass;\n      }\n\n      var tocLists = document.querySelector(options.tocSelector).querySelectorAll('.' + options.listClass + '.' + options.collapsibleClass); // Collapse the other collapsible lists.\n\n      forEach.call(tocLists, function (list) {\n        if (list.className.indexOf(options.isCollapsedClass) === -1) {\n          list.className += SPACE_CHAR + options.isCollapsedClass;\n        }\n      }); // Expand the active link's collapsible list and its sibling if applicable.\n\n      if (activeTocLink.nextSibling && activeTocLink.nextSibling.className.indexOf(options.isCollapsedClass) !== -1) {\n        activeTocLink.nextSibling.className = activeTocLink.nextSibling.className.split(SPACE_CHAR + options.isCollapsedClass).join('');\n      }\n\n      removeCollapsedFromParents(activeTocLink.parentNode.parentNode);\n    }\n  }\n  /**\n   * Remove collpased class from parent elements.\n   * @param {HTMLElement} element\n   * @return {HTMLElement}\n   */\n\n\n  function removeCollapsedFromParents(element) {\n    if (element.className.indexOf(options.collapsibleClass) !== -1 && element.className.indexOf(options.isCollapsedClass) !== -1) {\n      element.className = element.className.split(SPACE_CHAR + options.isCollapsedClass).join('');\n      return removeCollapsedFromParents(element.parentNode.parentNode);\n    }\n\n    return element;\n  }\n  /**\n   * Disable TOC Animation when a link is clicked.\n   * @param {Event} event\n   */\n\n\n  function disableTocAnimation(event) {\n    var target = event.target || event.srcElement;\n\n    if (typeof target.className !== 'string' || target.className.indexOf(options.linkClass) === -1) {\n      return;\n    } // Bind to tocLink clicks to temporarily disable highlighting\n    // while smoothScroll is animating.\n\n\n    currentlyHighlighting = false;\n  }\n  /**\n   * Enable TOC Animation.\n   */\n\n\n  function enableTocAnimation() {\n    currentlyHighlighting = true;\n  }\n\n  return {\n    enableTocAnimation: enableTocAnimation,\n    disableTocAnimation: disableTocAnimation,\n    render: render,\n    updateToc: updateToc\n  };\n};","require(\"core-js/modules/es6.regexp.split\");\n\n/**\n * This file is responsible for parsing the content from the DOM and making\n * sure data is nested properly.\n *\n * @author Tim Scanlin\n */\nmodule.exports = function parseContent(options) {\n  var reduce = [].reduce;\n  /**\n   * Get the last item in an array and return a reference to it.\n   * @param {Array} array\n   * @return {Object}\n   */\n\n  function getLastItem(array) {\n    return array[array.length - 1];\n  }\n  /**\n   * Get heading level for a heading dom node.\n   * @param {HTMLElement} heading\n   * @return {Number}\n   */\n\n\n  function getHeadingLevel(heading) {\n    return +heading.nodeName.split('H').join('');\n  }\n  /**\n   * Get important properties from a heading element and store in a plain object.\n   * @param {HTMLElement} heading\n   * @return {Object}\n   */\n\n\n  function getHeadingObject(heading) {\n    var obj = {\n      id: heading.id,\n      children: [],\n      nodeName: heading.nodeName,\n      headingLevel: getHeadingLevel(heading),\n      textContent: heading.textContent.trim()\n    };\n\n    if (options.includeHtml) {\n      obj.childNodes = heading.childNodes;\n    }\n\n    return obj;\n  }\n  /**\n   * Add a node to the nested array.\n   * @param {Object} node\n   * @param {Array} nest\n   * @return {Array}\n   */\n\n\n  function addNode(node, nest) {\n    var obj = getHeadingObject(node);\n    var level = getHeadingLevel(node);\n    var array = nest;\n    var lastItem = getLastItem(array);\n    var lastItemLevel = lastItem ? lastItem.headingLevel : 0;\n    var counter = level - lastItemLevel;\n\n    while (counter > 0) {\n      lastItem = getLastItem(array);\n\n      if (lastItem && lastItem.children !== undefined) {\n        array = lastItem.children;\n      }\n\n      counter--;\n    }\n\n    if (level >= options.collapseDepth) {\n      obj.isCollapsed = true;\n    }\n\n    array.push(obj);\n    return array;\n  }\n  /**\n   * Select headings in content area, exclude any selector in options.ignoreSelector\n   * @param {String} contentSelector\n   * @param {Array} headingSelector\n   * @return {Array}\n   */\n\n\n  function selectHeadings(contentSelector, headingSelector) {\n    var selectors = headingSelector;\n\n    if (options.ignoreSelector) {\n      selectors = headingSelector.split(',').map(function mapSelectors(selector) {\n        return selector.trim() + ':not(' + options.ignoreSelector + ')';\n      });\n    }\n\n    try {\n      return document.querySelector(contentSelector).querySelectorAll(selectors);\n    } catch (e) {\n      console.warn('Element not found: ' + contentSelector); // eslint-disable-line\n\n      return null;\n    }\n  }\n  /**\n   * Nest headings array into nested arrays with 'children' property.\n   * @param {Array} headingsArray\n   * @return {Object}\n   */\n\n\n  function nestHeadingsArray(headingsArray) {\n    return reduce.call(headingsArray, function reducer(prev, curr) {\n      var currentHeading = getHeadingObject(curr);\n      addNode(currentHeading, prev.nest);\n      return prev;\n    }, {\n      nest: []\n    });\n  }\n\n  return {\n    nestHeadingsArray: nestHeadingsArray,\n    selectHeadings: selectHeadings\n  };\n};","require(\"core-js/modules/es6.regexp.split\");\n\n/* globals location, requestAnimationFrame */\nexports.initSmoothScrolling = initSmoothScrolling;\n\nfunction initSmoothScrolling(options) {\n  if (isCssSmoothSCrollSupported()) {}\n\n  var duration = options.duration;\n  var offset = options.offset;\n  var pageUrl = location.hash ? stripHash(location.href) : location.href;\n  delegatedLinkHijacking();\n\n  function delegatedLinkHijacking() {\n    document.body.addEventListener('click', onClick, false);\n\n    function onClick(e) {\n      if (!isInPageLink(e.target) || e.target.className.indexOf('no-smooth-scroll') > -1 || e.target.href.charAt(e.target.href.length - 2) === '#' && e.target.href.charAt(e.target.href.length - 1) === '!' || e.target.className.indexOf(options.linkClass) === -1) {\n        return;\n      } // Don't prevent default or hash doesn't change.\n      // e.preventDefault()\n\n\n      jump(e.target.hash, {\n        duration: duration,\n        offset: offset,\n        callback: function callback() {\n          setFocus(e.target.hash);\n        }\n      });\n    }\n  }\n\n  function isInPageLink(n) {\n    return n.tagName.toLowerCase() === 'a' && (n.hash.length > 0 || n.href.charAt(n.href.length - 1) === '#') && (stripHash(n.href) === pageUrl || stripHash(n.href) + '#' === pageUrl);\n  }\n\n  function stripHash(url) {\n    return url.slice(0, url.lastIndexOf('#'));\n  }\n\n  function isCssSmoothSCrollSupported() {\n    return 'scrollBehavior' in document.documentElement.style;\n  } // Adapted from:\n  // https://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/\n\n\n  function setFocus(hash) {\n    var element = document.getElementById(hash.substring(1));\n\n    if (element) {\n      if (!/^(?:a|select|input|button|textarea)$/i.test(element.tagName)) {\n        element.tabIndex = -1;\n      }\n\n      element.focus();\n    }\n  }\n}\n\nfunction jump(target, options) {\n  var start = window.pageYOffset;\n  var opt = {\n    duration: options.duration,\n    offset: options.offset || 0,\n    callback: options.callback,\n    easing: options.easing || easeInOutQuad // This makes ids that start with a number work: ('[id=\"' + decodeURI(target).split('#').join('') + '\"]')\n    // DecodeURI for nonASCII hashes, they was encoded, but id was not encoded, it lead to not finding the tgt element by id.\n    // And this is for IE: document.body.scrollTop\n\n  };\n  var tgt = document.querySelector('[id=\"' + decodeURI(target).split('#').join('') + '\"]');\n  var distance = typeof target === 'string' ? opt.offset + (target ? tgt && tgt.getBoundingClientRect().top || 0 // handle non-existent links better.\n  : -(document.documentElement.scrollTop || document.body.scrollTop)) : target;\n  var duration = typeof opt.duration === 'function' ? opt.duration(distance) : opt.duration;\n  var timeStart;\n  var timeElapsed;\n  requestAnimationFrame(function (time) {\n    timeStart = time;\n    loop(time);\n  });\n\n  function loop(time) {\n    timeElapsed = time - timeStart;\n    window.scrollTo(0, opt.easing(timeElapsed, start, distance, duration));\n\n    if (timeElapsed < duration) {\n      requestAnimationFrame(loop);\n    } else {\n      end();\n    }\n  }\n\n  function end() {\n    window.scrollTo(0, start + distance);\n\n    if (typeof opt.callback === 'function') {\n      opt.callback();\n    }\n  } // Robert Penner's easeInOutQuad - http://robertpenner.com/easing/\n\n\n  function easeInOutQuad(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) return c / 2 * t * t + b;\n    t--;\n    return -c / 2 * (t * (t - 2) - 1) + b;\n  }\n}"],"sourceRoot":""}