javascript hashtable revised version download_javascript skills

Fixed the hashtableobj.set("length","0") bug You can set the key to ignore case You can clone the hashtable object You can use obj.valueOf("key","defalutvalue") to set the default value Wait Welcome to fix bugs

Copy code The code is as follows: // Authors Birdshome, 麻袋@博客园 改版 phito,彭海涛 Object.prototype.Clone = function() { var objClone; if ( this.constructor == Object ) objClone = new this.constructor(); else objClone = new this.constructor(this.valueOf()); for ( var key in this ) { if ( objClone[key] != this[key] ) { if ( typeof(this[key]) == 'object' ) { objClone[key] = this[key].Clone(); } else { objClone[key] = this[key]; } } } objClone.toString = this.toString; objClone.valueOf = this.valueOf; return objClone; } function Hashtable() { this.clear = hashtable_clear; this.containsKey = hashtable_containsKey; this.containsValue = hashtable_containsValue; this.get = hashtable_get; this.isEmpty = hashtable_isEmpty; this.keys = hashtable_keys; this.put = hashtable_put; this.remove = hashtable_remove; this.size = hashtable_size; this.toString = hashtable_toString; this.values = hashtable_values; this.hashtable = new Object(); this.set = hashtable_set; this.valueOf = hashtable_valueOf; this.clone = hashtable_clone; this.ignoreupperlower = true; //是否忽略大小写 } /*=======Private methods for internal use only========*/ function hashtable_clone(){ return this.Clone(); } function hashtable_put(key, value) { if (this.ignoreupperlower && typeof(key) == "string") { key = key.toUpperCase(); } if (key == null || value == null) { throw "NullPointerException {" key "},{" value "}"; } else { this.hashtable[key] = value; } } function hashtable_set(key, value) { if (this.ignoreupperlower && typeof(key) == "string") { key = key.toUpperCase(); } if (this.containsKey(key)) { this.remove(key); } this.put(key, value); } function hashtable_get(key) { if (this.ignoreupperlower && typeof(key) == "string") { key = key.toUpperCase(); } return this.hashtable[key]; } function hashtable_valueOf(key, defvalue) { var ret = this.get(key); if (typeof(ret) == "undefined") { return defvalue; } return ret; } function hashtable_remove(key) { if (this.containsKey(key)) { delete this.hashtable[key] ; } } function hashtable_isEmpty() { return (parseInt(this.size()) == 0) ? true: false; } function hashtable_size() { var size = 0; for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } if (this.hashtable[i] != null) { size ; } } return size; } function hashtable_toString() { var result = ""; for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } if (this.hashtable[i] != null) { result = "{" i ":" this.hashtable[i] "}n"; } } return result; } function hashtable_clear() { this.hashtable = new Object(); } function hashtable_containsKey(key) { if (this.ignoreupperlower && typeof(key) == "string") { key = key.toUpperCase(); } var exists = false; for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } if (i == key && this.hashtable[i] != null) { exists = true; break; } } return exists; } function hashtable_containsValue(value) { var contains = false; if (value != null) { for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } if (this.hashtable[i] == value) { contains = true; break; } } } return contains; } function hashtable_values() { var values = new Object(); for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } if (this.hashtable[i] != null) values.push(this.hashtable[i]); } return values; } function hashtable_keys() { var keys = new Object(); for (var i in this.hashtable) { if(typeof(this.hashtable[i])=="function"){ continue; } keys.push(i); } return keys; } function test() { var ht = new Hashtable(); ht.put("3", "Jackson"); ht.put("2", "Tom"); ht.put("4", 3); ht.set("length", 445555); ht.set("ddd", "ddd"); ht.set("index", "ddd"); var et = ht.toString(); ht.ignoreupperlower = false; //忽略大小写 ht.clear(); ht.put("3", "Jackson"); ht.put("2", "Tom"); ht.remove("2"); ht.put("4", 3); ht.set("length", 5); //如果用new Array的话该项会设置Array的长度 ht.set("index", "ddd"); ht.set("ddd", "ddd"); alert(et "" ht.toString() "" ht.size()); var cloneobj=ht.clone(); alert(cloneobj.toString()); } If you want to use hashtable and hashset with better functions, please download: http://xiazai.jb51.net/201012/yuanma/jshashtable.rar

javascript hashtable revised version download_javascript skills

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