数据处理方法封装

var DataWatch=(function(){            var gWatch={},cursor= 0,callback_key = 'callback',gMap={};            var check=function(cursor,name){                var _watcher=gWatch[cursor],itemCount = 0,resArr=[],flag=false;                if(!!map){                    return;                }                if(name && typeof (_watcher[name]) === undefined){                    return;                }                for(var key in _watcher){                    if(key === callback_key){                        continue;                    }                    if(gMap[key]){                        _watcher[key]=true;                        resArr.push(map[key]);                    }                    itemCount++;                }                if(resArr.length === itemCount){                    _watcher[callback_key] && _watcher[callback_key].apply(this,resArr);                }                resArr=null;            };            return {                watch:function(name,callback){                    //兼容watch单个内容                    if(typeof(name) === 'string' ){                        name=[name];                    }                    var _watcher={};                    name.forEach(function(item){                        _watcher[item]=false;                    })                    _watcher[callback_key]=callback;                    cursor++;                    gWatch[cursor]=_watcher;                    check(cursor);                },                put:function(key,value){                    gMap[key]=value;                    for(var cursor in gWatch){                        check(cursor,key);                    }                }            }        })()

使用方法可以下面这样

func1.ajaxSucc:DataWatch.put(key1,value1)func2.ajaxSucc:DataWatch.put(key2,value2)func3.ajaxSucc:DataWatch.put(key3,value3)DataWatch.watch([key1,key2],function(value1,value2){})DataWatch.watch([key1,key3],function(value1,value3){})