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var arr = []; arr['a'] = 1; arr['b'] = 2; arr['c'] = 3;// 此时长度为0：在键为字符串的时候length长度不增加 arr[8] = 4;// 此时长度为9：因为最大的非字符串键是8所以长度为9

Array.prototype.forEach = Array.prototype.forEach || function (callback) { var isArray = Object.prototype.toString.call(this) == '[object Array]'; if(isArray){ for(var key

Date.prototype.add = Date.prototype.add || function (date,time) { var _time = time.split(' '); var num = parseInt(_time[0]); var type = _time[1]; var result = null;

#one 绑定click事件#two 绑定click事件#three 绑定click事件假设你点击了 #three冒泡顺序：触发#three   ->   触发#two  -> 触发#one捕获顺序:触发#one   ->   触发#two  -> 触发#three    //正好与冒泡顺序相反三个阶段    |-捕获

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/** * @Author Toney * @Explain [description] * @DateTime 2017-01-22 * @copyright [datacvg] * @param {[type]} data [description] */ function Node(data)

var Mock = [ {element:'轮播',id:'2',pid:'1'}, {element:'轮播小图',id:'3',pid:'2'}, {element:'首页',id:'1',pid:'0'}, {element:'轮播大图',id:'4',pid:'2'}, {element:'产品',id:'5