01 variable.share.js

var subscribers = "$" + expose
var otherRequire = window.require
var otherDefine = window.define
var stopRepeatAssign = false
var rword = /[^, ]+/g //切割字符串为一个个小块，以空格或豆号分开它们，结合replace实现字符串的forEach
var rcomplexType = /^(?:object|array)$/
var rsvg = /^\[object SVG\w*Element\]$/
var rwindow = /^\[object (?:Window|DOMWindow|global)\]$/
var oproto = Object.prototype
var ohasOwn = oproto.hasOwnProperty
var serialize = oproto.toString
var ap = Array.prototype
var aslice = ap.slice
var Registry = {} //将函数曝光到此对象上，方便访问器收集依赖
var W3C = window.dispatchEvent
var root = DOC.documentElement
var hyperspace = DOC.createDocumentFragment()
var cinerator = DOC.createElement("div")
var class2type = {}
"Boolean Number String Function Array Date RegExp Object Error".replace(rword, function(name) {
    class2type["[object " + name + "]"] = name.toLowerCase()
})


function noop() {
}


function oneObject(array, val) {
    if (typeof array === "string") {
        array = array.match(rword) || []
    }
    var result = {},
            value = val !== void 0 ? val : 1
    for (var i = 0, n = array.length; i < n; i++) {
        result[array[i]] = value
    }
    return result
}

function createCache(maxLength) {
    var keys = []
    function cache(key, value) {
        if (keys.push(key) > maxLength) {
            delete cache[keys.shift()]
        }
        return cache[key] = value;
    }
    return cache;
}
//生成UUID http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
var generateID = function(prefix) {
    prefix = prefix || "avalon"
    return (prefix + Math.random() + Math.random()).replace(/0\./g, "")
}
function IE() {
    if (window.VBArray) {
        var mode = document.documentMode
        return mode ? mode : window.XMLHttpRequest ? 7 : 6
    } else {
        return 0
    }
}
var IEVersion = IE()