javascript扩展类之Clone、Arrary.find、Array.Update、Array.Add【(更新中······】

/// <summary>javascript扩展</summary>

Object.prototype.Clone = function () {
    /// <summary>深度克隆</summary>
    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;
}

//扩展Arrary对象函数        
Array.prototype.find = function (func) {
    /// <summary>查找</summary>
    /// <param name="func" type="Function">返回布尔类型的函数</param>

    var temp = []; for (var i = 0; i < this.length; i++) {
        if (func(this[i])) {
            temp[temp.length] = this[i];
        }
    }
    return temp;
}

Array.prototype.Update = function (key, obj) {
    /// <summary>修改Array中的对象</summary>
    /// <param name="key" type="String">键</param>
    /// <param name="obj" type="Object">Update内容</param>
    /// <returns type="Array" />

    for (var i = 0; i < this.length; i++) {
        if (this[i][key] == obj[key]) {
            for (var attr in obj) {
                if (typeof (obj[attr]) != "function") {
                    this[i][attr] = obj[attr];
                }
            }
        }
    }
    return this;
}

Array.prototype.Add = function (obj) {
    /// <summary>将指定的obj添加在在Array的末端</summary>
    /// <param name="obj" type="Object">指定的对象</param>

    this[this.length] = obj.Clone();
}