hereisfun

//fn为要节流的操作，interval为最小操作间隔
var throttle = function(fn, interval){
  var timer,
      _fn = fn;//保存要延时的函数的引用  
  
  return function(){
    var that = this;
    var arg = arguments;
    
    //如果有未完成的计时器，则不进行操作

hereisfun

//ary为要批量处理的数据，fn为对每个数据的操作方式，count为每次处理的量
var timechunk = function(ary, fn, count){
  var obj,
      timer;
  var start = function(){
    for(var i = 0; i < count; i++){
      if(ary.length === 0){
        return;
      }
      obj = ary.shift();