javascript - Backbone.model，我应该如何修改get方法

Question

使用 Backbone.model，我想更改 get 方法以便在我不将参数传递给 get 方法 时获取对象...请参见以下示例:

Task = Backbone.Model.extend({});
task = new Task({
    id: 2, 
    name: "taskName"
});

task.get("id"); // 2 // ***** ok ******
task.get("name"); // "taskName" // ***** ok ******
task.get(); // undefined // ******* it should be {id: 2, name: "taskName"} *****

Answer 1

您可以覆盖 Model().get()，如文档中所述:

• > http://documentcloud.github.com/backbone/#Model-extend

例如

Task = Backbone.Model.extend({
    get: function(attribute){
        if(typeof attribute  === "undefined"){
             return this.attributes;
             // Or, assuming you’ve also got json2.js available:
             // return this.toJSON();
        }
        else {
            return Backbone.Model.prototype.set.call(this, attribute);
        }
    }
});

demo