js自定义字典对象，键值对

自定义字典与Map对象实现

最新推荐文章于 2023-04-03 17:28:25 发布

原创最新推荐文章于 2023-04-03 17:28:25 发布 · 3.9k 阅读

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本文介绍了如何使用自定义的字典对象和Map对象进行数据存储与操作，包括put、get、remove等基本方法。

//自定义字典对象
function Dictionary(){
	this.data = new Array();
 
	this.put = function(key,value){
		this.data[key] = value;
	};
	this.get = function(key){
		return this.data[key];
	};
	this.remove = function(key){
		this.data[key] = null;
	};
	this.isEmpty = function(){
		return this.data.length == 0;
	};
	this.size = function(){
		return this.data.length;
	};
}

//自定义Map对象
function Map(){
	this.keys = new Array();
	this.data = new Array();
 
	this.put = function(key,value){
		if(this.data[key] == null){
			this.keys.push(value);
		}
		this.data[key] = value;
	};
 
	this.get = function(key){
		return this.data[key];
	};
 
	this.remove = function(key){
		this.keys.remove(key);
		this.data[key] = null;
	};
 
	this.isEmpty = function(){
		return this.keys.length == 0;
	};
 
	this.size = function(){
		return this.keys.length;
	};
}