89 lines
2.8 KiB
JavaScript
89 lines
2.8 KiB
JavaScript
/*********************************************************************
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* 全局变量及方法 *
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**********************************************************************/
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let bindingID = 1024
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let IEVersion = 0
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if (window.VBArray) {
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IEVersion = document.documentMode || (window.XMLHttpRequest ? 7 : 6)
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}
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let expose = generateID()
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//http://stackoverflow.com/questions/7290086/javascript-use-strict-and-nicks-find-global-function
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let DOC = window.document
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let head = DOC.head //HEAD元素
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head.insertAdjacentHTML(
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'afterBegin',
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'<anot skip class="anot-hide"><style id="anot-style">.anot-hide{ display: none!important } slot{visibility:hidden;}</style></anot>'
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)
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let ifGroup = head.firstChild
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function log() {
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// http://stackoverflow.com/questions/8785624/how-to-safely-wrap-console-log
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console.log.apply(console, arguments)
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}
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/**
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* Creates a new object without a prototype. This object is useful for lookup without having to
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* guard against prototypically inherited properties via hasOwnProperty.
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*
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* Related micro-benchmarks:
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* - http://jsperf.com/object-create2
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* - http://jsperf.com/proto-map-lookup/2
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* - http://jsperf.com/for-in-vs-object-keys2
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*/
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function createMap() {
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return Object.create(null)
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}
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let subscribers = '$' + expose
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let nullObject = {} //作用类似于noop，只用于代码防御，千万不要在它上面添加属性
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let rword = /[^, ]+/g //切割字符串为一个个小块，以空格或豆号分开它们，结合replace实现字符串的forEach
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let rw20g = /\w+/g
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let rsvg = /^\[object SVG\w*Element\]$/
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let oproto = Object.prototype
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let ohasOwn = oproto.hasOwnProperty
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let serialize = oproto.toString
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let ap = Array.prototype
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let aslice = ap.slice
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let W3C = window.dispatchEvent
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let root = DOC.documentElement
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let anotFragment = DOC.createDocumentFragment()
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let cinerator = DOC.createElement('div')
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let class2type = {
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'[object Boolean]': 'boolean',
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'[object Number]': 'number',
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'[object String]': 'string',
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'[object Function]': 'function',
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'[object Array]': 'array',
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'[object Date]': 'date',
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'[object RegExp]': 'regexp',
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'[object Object]': 'object',
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'[object Error]': 'error',
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'[object AsyncFunction]': 'asyncfunction',
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'[object Promise]': 'promise',
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'[object Generator]': 'generator',
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'[object GeneratorFunction]': 'generatorfunction'
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}
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function noop() {}
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function scpCompile(array) {
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return Function.apply(noop, array)
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}
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function oneObject(array, val) {
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if (typeof array === 'string') {
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array = array.match(rword) || []
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}
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let result = {},
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value = val !== void 0 ? val : 1
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for (let i = 0, n = array.length; i < n; i++) {
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result[array[i]] = value
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}
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return result
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}
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function generateID(mark) {
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mark = (mark && mark + '-') || 'anot-'
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return mark + (++bindingID).toString(16)
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}
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