js模拟化map结构操作

来源：互联网发布：oracle数据库备份编辑：程序博客网时间：2024/06/07 21:14

//创建map
function getMap(){//初始化map_，给map_对象增加方法，使map_像个Map
     var map=new Object();
     map.put=function(key,value){    map[key]=value;}
     map.get=function(key){    return map[key];}
     map.remove=function(key){    delete map[key];}
     map.keyset=function(){
         var ret="";
         for(var p in map){
             if(!isNaN(p)){
                 ret+=",";
                 ret+=p;
             }
         }
         if(ret==""){
             return ret.split(","); //empty array
         }else{
             return ret.substring(1).split(",");
         }
     };
     return map;
}

getMap()函数调用:

$(function(){
   var map = getMap();
  map.put("01","一");
  map.put("02","二");
  var keys=map.keyset();
  for(var i=0;i<keys.length;i++){

   alert(keys[i]);//打印key值
   alert(map.get(keys[i])); //打印value值
  }
  });

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