【全站工程师练习笔记】Web前端 自定义JS对象 object_list

    function object_list(){
        return new object_list.fn.init(arguments);
    }
    object_list.fn = object_list.prototype = {
        constructor:object_list,
        init:function(args){
            this.useDefaultList = true;
            this.object = {};
            return this;
        }
    };
    object_list.fn.init.prototype = object_list.fn;
    object_list.prototype.clear = function(){
        var k = arguments[0];
        if (k && this.has(k)) {delete this.object[k];}
        else { this.object = {};}
    }
    object_list.prototype.push = function (k,v) {
        if (this.useDefaultList){
            if (!this.object[k]){
                this.object[k] = new Array();
            }
            this.object[k].push(v);
        }else{
            if (!this.object[k]){
                this.object[k] = v;
            }else{
                var l = this.object[k];
                var arr = new Array();
                arr.push(l);
                arr.push(v);
                this.object[k] = arr;
            }
        }
        return this;
    };
    object_list.prototype.has =function(k){ return this.object[k] != undefined;};
    object_list.prototype.get = function(k){
        return this.object[k];
    };
    object_list.prototype.safe_get_call = function (k,target,_func_) {
        if (this.has(k)){
            _func_.call(this,k,this.get(k));
        }
    };
    object_list.prototype.get_with_default = function (k,d) {
        return this.has(k)?this.get(k):d;
    };
    object_list.prototype.for = function () {
        var f = arguments[0];
        var rstr= arguments[1] != undefined?arguments[1]:"";
        var r = (r.toLowerCase().indexOf("r") != -1 )? true:false;
        for (var k in this.object){
            if (!r){
                f(k,0,this.object[k]);
            }else{
                if (is_array(this.object[k])){
                    for (var j in this.object[k]){
                        f(k,j,this.object[k][j]);
                    }
                }else{
                    f(k,0,this.object[k]);
                }
            }
        }
    };
    object_list.prototype.for_with_target = function () {
        var f = arguments[0];
        var target = arguments[1];
        var rstr= arguments[2] != undefined?arguments[2]:"";
        var r = (r.toLowerCase().indexOf("r") != -1 )? true:false;
        for (var k in this.object){
            if (!r){
                f(k,0,this.object[k]);
            }else{
                if (is_array(this.object[k])){
                    for (var j in this.object[k]){
                        f.call(target,k,j,this.object[k][j]);
                    }
                }else{
                    f.call(target,k,0,this.object[k]);
                }
            }
        }
    };
    win.object_list = object_list;