/* eslint-disable brace-style */
/* eslint-disable no-mixed-operators */
/* eslint-disable no-sequences */
/* eslint-disable no-return-assign */
/* eslint-disable @typescript-eslint/no-this-alias */
/* eslint-disable no-unused-expressions */
/* eslint-disable eqeqeq */
/* eslint-disable prefer-const */
//     Zepto.js
//     (c) 2010-2017 Thomas Fuchs
//     Zepto.js may be freely distributed under the MIT license.
import Taro from '@tarojs/taro'
import { window } from '@tarojs/runtime'
import { Sizzle } from './sizzle'
import { initEvent } from './event'

export const Zepto = (function () {
  let undefined; let key; let $; let classList; const emptyArray = []; const concat = emptyArray.concat; const filter = emptyArray.filter; const slice = emptyArray.slice
  const document = window.document
  const isBrowser = typeof document !== 'undefined' && !!document.scripts
  const elementDisplay = {}; const classCache = {}
  const cssNumber = { 'column-count': 1, columns: 1, 'font-weight': 1, 'line-height': 1, opacity: 1, 'z-index': 1, zoom: 1 }
  const fragmentRE = /^\s*<(\w+|!)[^>]*>/
  const singleTagRE = /^<(\w+)\s*\/?>(?:<\/\1>|)$/
  const tagExpanderRE = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig
  const rootNodeRE = /^(?:body|html)$/i
  const capitalRE = /([A-Z])/g

  // special attributes that should be get/set via method calls
  const methodAttributes = ['val', 'css', 'html', 'text', 'data', 'width', 'height', 'offset']

  const adjacencyOperators = ['after', 'prepend', 'before', 'append']
  const table = document.createElement('table')
  const tableRow = document.createElement('tr')
  const containers = {
    tr: document.createElement('tbody'),
    tbody: table,
    thead: table,
    tfoot: table,
    td: tableRow,
    th: tableRow,
    '*': document.createElement('div')
  }
  const class2type = {}
  const toString = class2type.toString
  const zepto = {}
  let camelize; let uniq
  const tempParent = document.createElement('div')
  const propMap = {
    tabindex: 'tabIndex',
    readonly: 'readOnly',
    for: 'htmlFor',
    class: 'className',
    maxlength: 'maxLength',
    cellspacing: 'cellSpacing',
    cellpadding: 'cellPadding',
    rowspan: 'rowSpan',
    colspan: 'colSpan',
    usemap: 'useMap',
    frameborder: 'frameBorder',
    contenteditable: 'contentEditable'
  }
  const isArray = Array.isArray ||
      function (object) { return object instanceof Array }

  zepto.matches = function (element, selector) {
    if (!selector || !element || element.nodeType !== 1) return false
    const matchesSelector = element.matches || element.webkitMatchesSelector ||
                          element.mozMatchesSelector || element.oMatchesSelector ||
                          element.matchesSelector
    if (matchesSelector) return matchesSelector.call(element, selector)
    // fall back to performing a selector:
    let match; let parent = element.parentNode; const temp = !parent
    if (temp) (parent = tempParent).appendChild(element)
    match = ~zepto.qsa(parent, selector).indexOf(element)
    temp && tempParent.removeChild(element)
    return match
  }

  function type (obj) {
    return obj == null ? String(obj)
      : class2type[toString.call(obj)] || 'object'
  }

  function isFunction (value) { return type(value) == 'function' }
  function isWindow (obj) { return obj != null && obj == obj.window }
  function isDocument (obj) { return obj != null && obj.nodeType == obj.DOCUMENT_NODE }
  function isObject (obj) { return type(obj) == 'object' }
  function isPlainObject (obj) {
    return isObject(obj) && !isWindow(obj) && Object.getPrototypeOf(obj) == Object.prototype
  }

  function likeArray (obj) {
    const length = !!obj && 'length' in obj && obj.length
    const type = $.type(obj)

    return type != 'function' && !isWindow(obj) && (
      type == 'array' || length === 0 ||
        (typeof length === 'number' && length > 0 && (length - 1) in obj)
    )
  }

  function compact (array) { return filter.call(array, function (item) { return item != null }) }
  function flatten (array) { return array.length > 0 ? $.fn.concat.apply([], array) : array }
  camelize = function (str) { return str.replace(/-+(.)?/g, function (match, chr) { return chr ? chr.toUpperCase() : '' }) }
  function dasherize (str) {
    return str.replace(/::/g, '/')
      .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
      .replace(/([a-z\d])([A-Z])/g, '$1_$2')
      .replace(/_/g, '-')
      .toLowerCase()
  }
  uniq = function (array) { return filter.call(array, function (item, idx) { return array.indexOf(item) == idx }) }

  function classRE (name) {
    return name in classCache
      ? classCache[name] : (classCache[name] = new RegExp('(^|\\s)' + name + '(\\s|$)'))
  }

  function maybeAddPx (name, value) {
    return (typeof value === 'number' && !cssNumber[dasherize(name)]) ? value + 'px' : value
  }

  function defaultDisplay (nodeName) {
    let element, display
    if (!elementDisplay[nodeName]) {
      element = document.createElement(nodeName)
      document.body.appendChild(element)
      display = window.getComputedStyle(element, '').getPropertyValue('display')
      element.parentNode.removeChild(element)
      display == 'none' && (display = 'block')
      elementDisplay[nodeName] = display
    }
    return elementDisplay[nodeName]
  }

  function children (element) {
    return 'children' in element
      ? slice.call(element.children)
      : $.map(element.childNodes, function (node) { if (node.nodeType == 1) return node })
  }

  function Z (dom, selector) {
    let i; const len = dom ? dom.length : 0
    for (i = 0; i < len; i++) this[i] = dom[i]
    this.length = len
    this.selector = selector || ''
  }

  // `$.zepto.fragment` takes a html string and an optional tag name
  // to generate DOM nodes from the given html string.
  // The generated DOM nodes are returned as an array.
  // This function can be overridden in plugins for example to make
  // it compatible with browsers that don't support the DOM fully.
  zepto.fragment = function (html, name, properties) {
    let dom, nodes, container

    // A special case optimization for a single tag
    if (singleTagRE.test(html)) dom = $(document.createElement(RegExp.$1))

    if (!dom) {
      if (html.replace) html = html.replace(tagExpanderRE, '<$1></$2>')
      if (name === undefined) name = fragmentRE.test(html) && RegExp.$1
      if (!(name in containers)) name = '*'

      container = containers[name]
      container.innerHTML = '' + html
      dom = $.each(slice.call(container.childNodes), function () {
        container.removeChild(this)
      })
    }

    if (isPlainObject(properties)) {
      nodes = $(dom)
      $.each(properties, function (key, value) {
        if (methodAttributes.indexOf(key) > -1) nodes[key](value)
        else nodes.attr(key, value)
      })
    }

    return dom
  }

  // `$.zepto.Z` swaps out the prototype of the given `dom` array
  // of nodes with `$.fn` and thus supplying all the Zepto functions
  // to the array. This method can be overridden in plugins.
  zepto.Z = function (dom, selector) {
    return new Z(dom, selector)
  }

  // `$.zepto.isZ` should return `true` if the given object is a Zepto
  // collection. This method can be overridden in plugins.
  zepto.isZ = function (object) {
    return object instanceof zepto.Z
  }

  // `$.zepto.init` is Zepto's counterpart to jQuery's `$.fn.init` and
  // takes a CSS selector and an optional context (and handles various
  // special cases).
  // This method can be overridden in plugins.
  zepto.init = function (selector, context) {
    let dom
    // If nothing given, return an empty Zepto collection
    if (!selector) return zepto.Z()
    // Optimize for string selectors
    else if (typeof selector === 'string') {
      selector = selector.trim()
      // If it's a html fragment, create nodes from it
      // Note: In both Chrome 21 and Firefox 15, DOM error 12
      // is thrown if the fragment doesn't begin with <
      if (selector[0] == '<' && fragmentRE.test(selector)) { dom = zepto.fragment(selector, RegExp.$1, context), selector = null }
      // If there's a context, create a collection on that context first, and select
      // nodes from there
      else if (context !== undefined) return $(context).find(selector)
      // If it's a CSS selector, use it to select nodes.
      else dom = zepto.qsa(document, selector)
    }
    // If a function is given, call it when the DOM is ready
    else if (isFunction(selector)) return $(document).ready(selector)
    // If a Zepto collection is given, just return it
    else if (zepto.isZ(selector)) return selector
    else {
      // normalize array if an array of nodes is given
      if (isArray(selector)) dom = compact(selector)
      // Wrap DOM nodes.
      else if (isObject(selector)) { dom = [selector], selector = null }
      // If it's a html fragment, create nodes from it
      else if (fragmentRE.test(selector)) { dom = zepto.fragment(selector.trim(), RegExp.$1, context), selector = null }
      // If there's a context, create a collection on that context first, and select
      // nodes from there
      else if (context !== undefined) return $(context).find(selector)
      // And last but no least, if it's a CSS selector, use it to select nodes.
      else dom = zepto.qsa(document, selector)
    }
    // create a new Zepto collection from the nodes found
    return zepto.Z(dom, selector)
  }

  // `$` will be the base `Zepto` object. When calling this
  // function just call `$.zepto.init, which makes the implementation
  // details of selecting nodes and creating Zepto collections
  // patchable in plugins.
  $ = function (selector, context) {
    return zepto.init(selector, context)
  }

  function extend (target, source, deep) {
    for (key in source) {
      if (deep && (isPlainObject(source[key]) || isArray(source[key]))) {
        if (isPlainObject(source[key]) && !isPlainObject(target[key])) { target[key] = {} }
        if (isArray(source[key]) && !isArray(target[key])) { target[key] = [] }
        extend(target[key], source[key], deep)
      } else if (source[key] !== undefined) target[key] = source[key]
    }
  }

  // Copy all but undefined properties from one or more
  // objects to the `target` object.
  $.extend = function (target) {
    let deep; const args = slice.call(arguments, 1)
    if (typeof target === 'boolean') {
      deep = target
      target = args.shift()
    }
    args.forEach(function (arg) { extend(target, arg, deep) })
    return target
  }

  // `$.zepto.qsa` is Zepto's CSS selector implementation which
  // uses `document.querySelectorAll` and optimizes for some special cases, like `#id`.
  // This method can be overridden in plugins.
  zepto.qsa = function (element, selector) {
    return Sizzle(selector, element)
  }

  function filtered (nodes, selector) {
    return selector == null ? $(nodes) : $(nodes).filter(selector)
  }

  $.contains = document.documentElement.contains
    ? function (parent, node) {
      return parent !== node && parent.contains(node)
    }
    : function (parent, node) {
      while (node && (node = node.parentNode)) { if (node === parent) return true }
      return false
    }

  function funcArg (context, arg, idx, payload) {
    return isFunction(arg) ? arg.call(context, idx, payload) : arg
  }

  function setAttribute (node, name, value) {
    value == null ? node.removeAttribute(name) : node.setAttribute(name, value)
  }

  // access className property while respecting SVGAnimatedString
  function className (node, value) {
    const klass = node.className || ''
    const svg = klass && klass.baseVal !== undefined

    if (value === undefined) return svg ? klass.baseVal : klass
    svg ? (klass.baseVal = value) : (node.className = value)
  }

  // "true"  => true
  // "false" => false
  // "null"  => null
  // "42"    => 42
  // "42.5"  => 42.5
  // "08"    => "08"
  // JSON    => parse if valid
  // String  => self
  function deserializeValue (value) {
    try {
      return value
        ? value == 'true' ||
        (value == 'false' ? false
          : value == 'null' ? null
            : +value + '' == value ? +value
              : /^[[{]/.test(value) ? $.parseJSON(value)
                : value)
        : value
    } catch (e) {
      return value
    }
  }

  $.type = type
  $.isFunction = isFunction
  $.isWindow = isWindow
  $.isArray = isArray
  $.isPlainObject = isPlainObject

  $.isEmptyObject = function (obj) {
    let name
    for (name in obj) return false
    return true
  }

  $.isNumeric = function (val) {
    const num = Number(val); const type = typeof val
    return val != null && type != 'boolean' &&
      (type != 'string' || val.length) &&
      !isNaN(num) && isFinite(num) || false
  }

  $.inArray = function (elem, array, i) {
    return emptyArray.indexOf.call(array, elem, i)
  }

  $.camelCase = camelize
  $.trim = function (str) {
    return str == null ? '' : String.prototype.trim.call(str)
  }

  // plugin compatibility
  $.uuid = 0
  $.support = { }
  $.expr = { }
  $.noop = function () {}

  $.map = function (elements, callback) {
    let value; const values = []; let i; let key
    if (likeArray(elements)) {
      for (i = 0; i < elements.length; i++) {
        value = callback(elements[i], i)
        if (value != null) values.push(value)
      }
    } else {
      for (key in elements) {
        value = callback(elements[key], key)
        if (value != null) values.push(value)
      }
    }
    return flatten(values)
  }

  $.each = function (elements, callback) {
    let i, key
    if (likeArray(elements)) {
      for (i = 0; i < elements.length; i++) { if (callback.call(elements[i], i, elements[i]) === false) return elements }
    } else {
      for (key in elements) { if (callback.call(elements[key], key, elements[key]) === false) return elements }
    }

    return elements
  }

  $.grep = function (elements, callback) {
    return filter.call(elements, callback)
  }

  if (window.JSON) $.parseJSON = JSON.parse

  // Populate the class2type map
  $.each('Boolean Number String Function Array Date RegExp Object Error'.split(' '), function (i, name) {
    class2type['[object ' + name + ']'] = name.toLowerCase()
  })

  // Define methods that will be available on all
  // Zepto collections
  $.fn = {
    constructor: zepto.Z,
    length: 0,

    // Because a collection acts like an array
    // copy over these useful array functions.
    forEach: emptyArray.forEach,
    reduce: emptyArray.reduce,
    push: emptyArray.push,
    sort: emptyArray.sort,
    splice: emptyArray.splice,
    indexOf: emptyArray.indexOf,
    concat: function () {
      let i; let value; const args = []
      for (i = 0; i < arguments.length; i++) {
        value = arguments[i]
        args[i] = zepto.isZ(value) ? value.toArray() : value
      }
      return concat.apply(zepto.isZ(this) ? this.toArray() : this, args)
    },

    // `map` and `slice` in the jQuery API work differently
    // from their array counterparts
    map: function (fn) {
      return $($.map(this, function (el, i) { return fn.call(el, i, el) }))
    },
    slice: function () {
      return $(slice.apply(this, arguments))
    },

    ready: function (callback) {
      // don't use "interactive" on IE <= 10 (it can fired premature)
      if (document.readyState === 'complete' ||
          (document.readyState !== 'loading' && !document.documentElement.doScroll)) { setTimeout(function () { callback($) }, 0) } else {
        let handler = function () {
          document.removeEventListener('DOMContentLoaded', handler, false)
          window.removeEventListener('load', handler, false)
          callback($)
        }
        document.addEventListener('DOMContentLoaded', handler, false)
        window.addEventListener('load', handler, false)
      }
      return this
    },
    get: function (idx) {
      return idx === undefined ? slice.call(this) : this[idx >= 0 ? idx : idx + this.length]
    },
    toArray: function () { return this.get() },
    size: function () {
      return this.length
    },
    remove: function () {
      return this.each(function () {
        if (this.parentNode != null) { this.parentNode.removeChild(this) }
      })
    },
    each: function (callback) {
      emptyArray.every.call(this, function (el, idx) {
        return callback.call(el, idx, el) !== false
      })
      return this
    },
    filter: function (selector) {
      if (isFunction(selector)) return this.not(this.not(selector))
      return $(filter.call(this, function (element) {
        return zepto.matches(element, selector)
      }))
    },
    add: function (selector, context) {
      return $(uniq(this.concat($(selector, context))))
    },
    is: function (selector) {
      return typeof selector === 'string' ? this.length > 0 && zepto.matches(this[0], selector)
        : selector && this.selector == selector.selector
    },
    not: function (selector) {
      const nodes = []
      if (isFunction(selector) && selector.call !== undefined) {
        this.each(function (idx) {
          if (!selector.call(this, idx)) nodes.push(this)
        })
      } else {
        const excludes = typeof selector === 'string' ? this.filter(selector)
          : (likeArray(selector) && isFunction(selector.item)) ? slice.call(selector) : $(selector)
        this.forEach(function (el) {
          if (excludes.indexOf(el) < 0) nodes.push(el)
        })
      }
      return $(nodes)
    },
    has: function (selector) {
      return this.filter(function () {
        return isObject(selector)
          ? $.contains(this, selector)
          : $(this).find(selector).size()
      })
    },
    eq: function (idx) {
      return idx === -1 ? this.slice(idx) : this.slice(idx, +idx + 1)
    },
    first: function () {
      const el = this[0]
      return el && !isObject(el) ? el : $(el)
    },
    last: function () {
      const el = this[this.length - 1]
      return el && !isObject(el) ? el : $(el)
    },
    find: function (selector) {
      let result; const $this = this
      if (!selector) result = $()
      else if (typeof selector === 'object') {
        result = $(selector).filter(function () {
          const node = this
          return emptyArray.some.call($this, function (parent) {
            return $.contains(parent, node)
          })
        })
      } else if (this.length == 1) result = $(zepto.qsa(this[0], selector))
      else result = this.map(function () { return zepto.qsa(this, selector) })
      return result
    },
    closest: function (selector, context) {
      const nodes = []; const collection = typeof selector === 'object' && $(selector)
      this.each(function (_, node) {
        while (node && !(collection ? collection.indexOf(node) >= 0 : zepto.matches(node, selector))) { node = node !== context && !isDocument(node) && node.parentNode }
        if (node && nodes.indexOf(node) < 0) nodes.push(node)
      })
      return $(nodes)
    },
    parents: function (selector) {
      const ancestors = []; let nodes = this
      while (nodes.length > 0) {
        nodes = $.map(nodes, function (node) {
          if ((node = node.parentNode) && !isDocument(node) && ancestors.indexOf(node) < 0) {
            ancestors.push(node)
            return node
          }
        })
      }
      return filtered(ancestors, selector)
    },
    parent: function (selector) {
      return filtered(uniq(this.pluck('parentNode')), selector)
    },
    children: function (selector) {
      return filtered(this.map(function () { return children(this) }), selector)
    },
    contents: function () {
      return this.map(function () { return this.contentDocument || slice.call(this.childNodes) })
    },
    siblings: function (selector) {
      return filtered(this.map(function (i, el) {
        return filter.call(children(el.parentNode), function (child) { return child !== el })
      }), selector)
    },
    empty: function () {
      return this.each(function () { this.innerHTML = '' })
    },
    // `pluck` is borrowed from Prototype.js
    pluck: function (property) {
      return $.map(this, function (el) { return el[property] })
    },
    show: function () {
      return this.each(function () {
        this.style.display == 'none' && (this.style.display = '')
        if (window.getComputedStyle(this, '').getPropertyValue('display') == 'none') { this.style.display = defaultDisplay(this.nodeName) }
      })
    },
    replaceWith: function (newContent) {
      return this.before(newContent).remove()
    },
    wrap: function (structure) {
      const func = isFunction(structure)
      let dom
      let clone
      if (this[0] && !func) {
        dom = $(structure).get(0)
        clone = dom.parentNode || this.length > 1
      }

      return this.each(function (index) {
        $(this).wrapAll(
          func ? structure.call(this, index)
            : clone ? dom.cloneNode(true) : dom
        )
      })
    },
    wrapAll: function (structure) {
      if (this[0]) {
        $(this[0]).before(structure = $(structure))
        let children
        // drill down to the inmost element
        while ((children = structure.children()).length) structure = children.first()
        $(structure).append(this)
      }
      return this
    },
    wrapInner: function (structure) {
      const func = isFunction(structure)
      return this.each(function (index) {
        const self = $(this); const contents = self.contents()
        const dom = func ? structure.call(this, index) : structure
        contents.length ? contents.wrapAll(dom) : self.append(dom)
      })
    },
    unwrap: function () {
      this.parent().each(function () {
        $(this).replaceWith($(this).children())
      })
      return this
    },
    clone: function () {
      return this.map(function () { return this.cloneNode(true) })
    },
    hide: function () {
      return this.css('display', 'none')
    },
    toggle: function (setting) {
      return this.each(function () {
        const el = $(this)
        ;(setting === undefined ? el.css('display') == 'none' : setting) ? el.show() : el.hide()
      })
    },
    prev: function (selector) { return $(this.pluck('previousElementSibling')).filter(selector || '*') },
    next: function (selector) { return $(this.pluck('nextElementSibling')).filter(selector || '*') },
    html: function (html) {
      return 0 in arguments
        ? this.each(function (idx) {
          const originHtml = this.innerHTML
          $(this).empty().append(funcArg(this, html, idx, originHtml))
        })
        : (0 in this ? this[0].innerHTML : null)
    },
    text: function (text) {
      return 0 in arguments
        ? this.each(function (idx) {
          const newText = funcArg(this, text, idx, this.textContent)
          this.textContent = newText == null ? '' : '' + newText
        })
        : (0 in this ? this.pluck('textContent').join('') : null)
    },
    attr: function (name, value) {
      let result
      return (typeof name === 'string' && !(1 in arguments))
        ? (0 in this && this[0].nodeType == 1 && (result = this[0].getAttribute(name)) != null ? result : undefined)
        : this.each(function (idx) {
          if (this.nodeType !== 1) return
          if (isObject(name)) for (key in name) setAttribute(this, key, name[key])
          else setAttribute(this, name, funcArg(this, value, idx, this.getAttribute(name)))
        })
    },
    removeAttr: function (name) {
      return this.each(function () {
        this.nodeType === 1 && name.split(' ').forEach(function (attribute) {
          setAttribute(this, attribute)
        }, this)
      })
    },
    prop: function (name, value) {
      name = propMap[name] || name
      return (typeof name === 'string' && !(1 in arguments))
        ? (this[0] && this[0][name])
        : this.each(function (idx) {
          if (isObject(name)) for (key in name) this[propMap[key] || key] = name[key]
          else this[name] = funcArg(this, value, idx, this[name])
        })
    },
    removeProp: function (name) {
      name = propMap[name] || name
      return this.each(function () { delete this[name] })
    },
    data: function (name, value) {
      const attrName = 'data-' + name.replace(capitalRE, '-$1').toLowerCase()

      const data = (1 in arguments)
        ? this.attr(attrName, value)
        : this.attr(attrName)

      return data !== null ? deserializeValue(data) : undefined
    },
    val: function (value) {
      if (0 in arguments) {
        if (value == null) value = ''
        return this.each(function (idx) {
          this.value = funcArg(this, value, idx, this.value)
        })
      } else {
        return this[0] && (this[0].multiple
          ? $(this[0]).find('option').filter(function () { return this.selected }).pluck('value')
          : this[0].value)
      }
    },
    offset: function (coordinates) {
      if (coordinates) {
        return this.each(function (index) {
          const $this = $(this)
          const coords = funcArg(this, coordinates, index, $this.offset())
          const parentOffset = $this.offsetParent().offset()
          const props = {
            top: coords.top - parentOffset.top,
            left: coords.left - parentOffset.left
          }

          if ($this.css('position') == 'static') props.position = 'relative'
          $this.css(props)
        })
      }
      if (!this.length) return null
      if (document.documentElement !== this[0] && !$.contains(document.documentElement, this[0])) { return { top: 0, left: 0 } }
      if (!isBrowser) {
        return new Promise((resolve) => {
          Taro.createSelectorQuery().select('#' + this[0].uid).boundingClientRect(function (rect) {
            resolve({
              left: rect.left,
              top: rect.top,
              width: rect.height,
              height: rect.height
            })
          }).exec()
        })
      }

      const obj = this[0].getBoundingClientRect()
      return new Promise((resolve) => {
        resolve({
          left: obj.left + window.pageXOffset,
          top: obj.top + window.pageYOffset,
          width: Math.round(obj.width),
          height: Math.round(obj.height)
        })
      })
    },
    css: function (property, value) {
      if (arguments.length < 2) {
        const element = this[0]
        if (typeof property === 'string') {
          if (!element) return
          return element.style[camelize(property)] || window.getComputedStyle(element, '').getPropertyValue(property)
        } else if (isArray(property)) {
          if (!element) return
          const props = {}
          const computedStyle = window.getComputedStyle(element, '')
          $.each(property, function (_, prop) {
            props[prop] = (element.style[camelize(prop)] || computedStyle.getPropertyValue(prop))
          })
          return props
        }
      }

      let css = ''
      if (type(property) == 'string') {
        if (!value && value !== 0) { this.each(function () { this.style.removeProperty(dasherize(property)) }) } else { css = dasherize(property) + ':' + maybeAddPx(property, value) }
      } else {
        for (key in property) {
          if (!property[key] && property[key] !== 0) { this.each(function () { this.style.removeProperty(dasherize(key)) }) } else { css += dasherize(key) + ':' + maybeAddPx(key, property[key]) + ';' }
        }
      }

      return this.each(function () { this.style.cssText += ';' + css })
    },
    index: function (element) {
      return element ? this.indexOf($(element)[0]) : this.parent().children().indexOf(this[0])
    },
    hasClass: function (name) {
      if (!name) return false
      return emptyArray.some.call(this, function (el) {
        return this.test(className(el))
      }, classRE(name))
    },
    addClass: function (name) {
      if (!name) return this
      return this.each(function (idx) {
        if (!('className' in this)) return
        classList = []
        const cls = className(this); const newName = funcArg(this, name, idx, cls)
        newName.split(/\s+/g).forEach(function (klass) {
          if (!$(this).hasClass(klass)) classList.push(klass)
        }, this)
        classList.length && className(this, cls + (cls ? ' ' : '') + classList.join(' '))
      })
    },
    removeClass: function (name) {
      return this.each(function (idx) {
        if (!('className' in this)) return
        if (name === undefined) return className(this, '')
        classList = className(this)
        funcArg(this, name, idx, classList).split(/\s+/g).forEach(function (klass) {
          classList = classList.replace(classRE(klass), ' ')
        })
        className(this, classList.trim())
      })
    },
    toggleClass: function (name, when) {
      if (!name) return this
      return this.each(function (idx) {
        const $this = $(this); const names = funcArg(this, name, idx, className(this))
        names.split(/\s+/g).forEach(function (klass) {
          (when === undefined ? !$this.hasClass(klass) : when)
            ? $this.addClass(klass) : $this.removeClass(klass)
        })
      })
    },
    scrollTop: function (value) {
      if (!this.length) return
      const hasScrollTop = 'scrollTop' in this[0]
      if (value === undefined) {
        if (isBrowser) {
          return Promise.resolve(hasScrollTop ? this[0].scrollTop : this[0].pageYOffset)
        }
        return hasScrollTop ? Promise.resolve(this[0].scrollTop) : new Promise((resolve) => {
          Taro.createSelectorQuery().select('#' + this[0].uid).scrollOffset(function (res) {
            resolve(res.scrollTop)
          }).exec()
        })
      }
      return this.each(hasScrollTop
        ? function () { this.scrollTop = value }
        : function () { this.scrollTo(this.scrollX, value) })
    },
    scrollLeft: function (value) {
      if (!this.length) return
      const hasScrollLeft = 'scrollLeft' in this[0]
      if (value === undefined) {
        if (isBrowser) {
          return Promise.resolve(hasScrollLeft ? this[0].scrollLeft : this[0].pageXOffset)
        }

        return hasScrollLeft ? Promise.resolve(this[0].scrollLeft) : new Promise(resolve => {
          Taro.createSelectorQuery().select('#' + this[0].uid).scrollOffset(function (res) {
            resolve(res.scrollLeft)
          }).exec()
        })
      }
      return this.each(hasScrollLeft
        ? function () { this.scrollLeft = value }
        : function () { this.scrollTo(value, this.scrollY) })
    },
    position: function () {
      if (!this.length) return

      const elem = this[0]
      // Get *real* offsetParent
      const offsetParent = this.offsetParent()
      // Get correct offsets
      const offset = this.offset()
      const parentOffset = rootNodeRE.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset()
      if (!offset) return
      return offset.then(offsetValue => {
        // Subtract element margins
        // note: when an element has margin: auto the offsetLeft and marginLeft
        // are the same in Safari causing offset.left to incorrectly be 0
        offsetValue.top -= parseFloat($(elem).css('margin-top')) || 0
        offsetValue.left -= parseFloat($(elem).css('margin-left')) || 0

        // Add offsetParent borders
        parentOffset.top += parseFloat($(offsetParent[0]).css('border-top-width')) || 0
        parentOffset.left += parseFloat($(offsetParent[0]).css('border-left-width')) || 0

        // Subtract the two offsets
        return {
          top: offsetValue.top - parentOffset.top,
          left: offsetValue.left - parentOffset.left
        }
      })
    },
    offsetParent: function () {
      return this.map(function () {
        let parent = this.offsetParent || document.body
        while (parent && !rootNodeRE.test(parent.nodeName) && $(parent).css('position') == 'static') { parent = parent.offsetParent }
        return parent
      })
    }
  }

  // for now
  $.fn.detach = $.fn.remove

  // Generate the `width` and `height` functions
  ;['width', 'height'].forEach(function (dimension) {
    const dimensionProperty =
      dimension.replace(/./, function (m) { return m[0].toUpperCase() })

    $.fn[dimension] = function (value) {
      let el = this[0]
      if (value === undefined) {
        if (isBrowser) {
          let v
          if (isWindow) {
            v = el['inner' + dimensionProperty]
          } else if (isDocument) {
            v = el.documentElement['scroll' + dimensionProperty]
          }
          return Promise.resolve(v)
        }
        return this.offset().then(rect => rect[dimension])
      } else {
        return this.each(function (idx) {
          el = $(this)
          el.css(dimension, funcArg(this, value, idx, el[dimension]()))
        })
      }
    }
  })

  // Generate the `after`, `prepend`, `before`, `append`,
  // `insertAfter`, `insertBefore`, `appendTo`, and `prependTo` methods.
  adjacencyOperators.forEach(function (operator, operatorIndex) {
    const inside = operatorIndex % 2 //= > prepend, append

    $.fn[operator] = function () {
      // arguments can be nodes, arrays of nodes, Zepto objects and HTML strings
      let argType; const nodes = $.map(arguments, function (arg) {
        let arr = []
        argType = type(arg)
        if (argType == 'array') {
          arg.forEach(function (el) {
            if (el.nodeType !== undefined) return arr.push(el)
            else if ($.zepto.isZ(el)) return arr = arr.concat(el.get())
            arr = arr.concat(zepto.fragment(el))
          })
          return arr
        }
        return argType == 'object' || arg == null
          ? arg : zepto.fragment(arg)
      })
      let parent; const copyByClone = this.length > 1
      if (nodes.length < 1) return this

      return this.each(function (_, target) {
        parent = inside ? target : target.parentNode

        // convert all methods to a "before" operation
        target = operatorIndex == 0 ? target.nextSibling
          : operatorIndex == 1 ? target.firstChild
            : operatorIndex == 2 ? target
              : null

        nodes.forEach(function (node) {
          if (copyByClone) node = node.cloneNode(true)
          else if (!parent) return $(node).remove()

          parent.insertBefore(node, target)
        })
      })
    }

    // after    => insertAfter
    // prepend  => prependTo
    // before   => insertBefore
    // append   => appendTo
    $.fn[inside ? operator + 'To' : 'insert' + (operatorIndex ? 'Before' : 'After')] = function (html) {
      $(html)[operator](this)
      return this
    }
  })

  zepto.Z.prototype = Z.prototype = $.fn

  // Export internal API functions in the `$.zepto` namespace
  zepto.uniq = uniq
  zepto.deserializeValue = deserializeValue
  $.zepto = zepto
  initEvent($)

  return $
})()
