首页 > 代码库 > javascript模仿map
javascript模仿map
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="http://www.mamicode.com/">
<title>My JSP ‘test3.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="http://www.mamicode.com/styles.css">
-->
<script src="http://www.mamicode.com/js/jquery-2.1.1.min.js"></script>
<script>
//模拟map
function Map(){
var object={}; //空的对象，用于承载键值对
this.put=function(key,value){
object[key]=value; //把键值对绑定到object上
}
this.size=function(){
var count=0;
for(var attr in object){
count++;
}
return count;
}
this.get=function(key){
if(object[key]||object[key]===0||object[key]===false){
return object[key];
}else{
return null;
}
}
this.remove=function(key){
if(object[key]||object[key]===0||object[key]===false){
delete object[key];
}
}
this.eachmap=function(fn){
for(var attr in object){
fn(attr,object[attr]);
}
}
}
var map=new Map();
map.put(‘1‘,‘1‘);
map.put(‘2‘,‘2‘);
map.put(‘3‘,‘3‘);
alert(map.size());
alert(‘2‘);
map.eachmap(function(key,value){
alert(key+":"+value);
});
</script>
</head>
<body>
This is my JSP page. <br>
</body>
</html>本文出自 “matengbing” 博客，请务必保留此出处http://matengbing.blog.51cto.com/11395502/1878720
javascript模仿map
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。