【IT168技术文档】
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>JSHashTable</title> <script type=text/javascript> function HashTable() { this.__hash = {}; this.Add = function(key,value) { if(typeof(key) != "undefined") { //if it not contains in hashtable if(! this.contains(key)) { this.__hash[key] = typeof(value) == "undefined" ? null : value; return true; } else{ return false; } } }; this.Remove = function(key){ delete this.__hash[key]; }; this.count = function(){ var i = 0; for(var obj 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 obj in this.__hash) { delete this.__hash[k]; } }; } var obj = new HashTable(); obj.Add("a"); obj.Add("b","b"); obj.Add("a"); obj.Remove("a"); alert(obj.contains("a")); obj.Add("c","I love you"); alert(obj.items("c")); </script> </head> <body> </body> </html>
