var Map = function() {
this.elements = new Array();
this.size = function() {
return this.elements.length;
}
this.isEmpty = function() {
return (this.elements.length < 1);
}
this.clear = function() {
this.elements.length = 0;
}
this.put = function(_key, _value) {
if(!this.containsKey(_key)){
this.elements.push ( {
key : _key,
value : _value
});
}else{
this.remove(_key);
this.put(_key,_value);
}
}
this.remove = function(_key) {
try {
for ( var i = 0; i < this.size(); i++) {
if (this.elements[i].key == _key){
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
return false;
}
return false;
}
this.get = function(_key) {
try {
for ( var i = 0; i < this.size(); i++) {
if (this.elements[i].key == _key) {
var _value = this.elements[i].value;
return _value;
}
}
} catch (e) {
return null;
}
return null;
}
this.containsKey = function(_key){
try {
for ( var i = 0; i < this.size(); i++) {
if (this.elements[i].key == _key) {
return true;
}
}
} catch (e) {
return false;
}
return false;
}
this.getValues = function(){
var values=new Array();
try {
for ( var i = 0; i < this.size(); i++) {
values.push(this.elements[i].key);
}
} catch (e) {
alert("Can not get Map Values ! {1}"+e.message);
return null;
}
return values;
}
this.getKeys = function(){
var keys=new Array();
try {
for ( var i = 0; i < this.size(); i++) {
keys.push(this.elements[i].values);
}
} catch (e) {
//alert("Can not get Map Keys ! {1}"+e.message);
return null;
}
return keys;
}
this.mapStr = function(){
return this.elements.toString();
}
}
JavaScript仿Java实现Map,布布扣,bubuko.com
原文：http://my.oschina.net/u/658145/blog/293224