/**
 * Created by Administrator on 2016/12/22.
 * for()循环和Array.every()方法运行速度
 */
var Arr=[5,6,12,23,0,11,"wasd",‘on‘,34,22,111,8,9,89,‘off‘,‘12‘,‘oe‘];
(function(){
  console.time("for");
    for(var i=0;i<Arr.length;i++){
        console.log(Arr[i]);
    }
    console.timeEnd(‘for‘);
})();
(function(){
    console.time(‘every‘);
    Arr.every(function(ele,index,arr){
        console.log(ele);
        if(index!==Arr.length){
            return true;
        }
    });
    console.timeEnd(‘every‘);
})();

/**
 * Created by Administrator on 2016/12/22.
 * object的forIn()循环对比forEach()方法运行速度
 */
var obj={
    a: ‘A‘,
    b: ‘B‘,
    ‘c-d-e‘: ‘CDE‘,
    ‘c‘:‘c‘,
    d:‘d‘,
    e:‘e‘,
    name:‘name‘,
    pro:{
        ‘proa‘:‘we‘,
        ‘proa‘:12
    }
};
(function(){
    console.time(‘forin‘);
    for(key in obj){
        console.log(obj[key]);
    }
    console.timeEnd(‘forin‘);
})();
(function(){
    console.time("foreach");
    Object.keys(obj).forEach(function(ele,index,arr){
        console.log(obj[ele]);
    })
    console.timeEnd(‘foreach‘);
})();