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javascript写的Hashtable类发表日期：2008-11-24
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<script language="javascript" type="text/javascript">
function Hashtable() { this._hash = new Object(); this.add = function(key,value){ if(typeof(key)!="undefined"){ if(this.contains(key)==false){ this._hash[key]=typeof(value)=="undefined"?null:value; return true; } else { return false; } } else { return false; } } this.remove = function(key){delete this._hash[key];} this.count = function(){var i=0;for(var k in this._hash){i++;} return i;} this.items = function(key){return this._hash[key];} this.contains = function(key){ return typeof(this._hash[key])!="undefined";} this.clear = function(){for(var k in this._hash){delete this._hash[k];}} } var a = new Hashtable(); a.add("aa"); a.add("bb","你好哦"); a.add("cc","hello"); //a.remove("aa"); alert(a.count()); alert(a.contains("bb")); //alert(a.contains("cc")); alert(a.items("bb")); </script> |
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