map.js

function Map() {this.elements = new Array();//获取MAP元素个数this.size = function() {return this.elements.length;};//判断MAP是否为空this.isEmpty = function() {return (this.elements.length < 1);};//删除MAP所有元素this.clear = function() {this.elements = new Array();};//向MAP中增加元素（key, value)this.put = function(_key, _value) {this.elements.push( {key : _key,value : _value});};//删除指定KEY的元素，成功返回True，失败返回Falsethis.remove = function(_key) {var bln = false;try {for (i = 0; i < this.elements.length; i++) {if (this.elements[i].key == _key) {this.elements.splice(i, 1);return true;}}} catch (e) {bln = false;}return bln;};//获取指定KEY的元素值VALUE，失败返回NULLthis.get = function(_key) {try {for (i = 0; i < this.elements.length; i++) {if (this.elements[i].key == _key) {return this.elements[i].value;}}} catch (e) {return null;}};//获取指定索引的元素（使用element.key，element.value获取KEY和VALUE），失败返回NULLthis.element = function(_index) {if (_index < 0 || _index >= this.elements.length) {return null;}return this.elements[_index];};//判断MAP中是否含有指定KEY的元素this.containsKey = function(_key) {var bln = false;try {for (i = 0; i < this.elements.length; i++) {if (this.elements[i].key == _key) {bln = true;}}} catch (e) {bln = false;}return bln;};//判断MAP中是否含有指定VALUE的元素this.containsValue = function(_value) {var bln = false;try {for (i = 0; i < this.elements.length; i++) {if (this.elements[i].value == _value) {bln = true;}}} catch (e) {bln = false;}return bln;};//获取MAP中所有VALUE的数组（ARRAY）this.values = function() {var arr = new Array();for (i = 0; i < this.elements.length; i++) {arr.push(this.elements[i].value);}return arr;};//获取MAP中所有KEY的数组（ARRAY）this.keys = function() {var arr = new Array();for (i = 0; i < this.elements.length; i++) {arr.push(this.elements[i].key);}return arr;};
}

调用方法与java保持一致：

var map = new Map();map.put(key,value);map.remove(key);