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Backbone.js collection.create()用法及代码示例

Backbone.js 集合 create 方法用于在集合中创建模型的新实例。

用法:

collection.create(attributes,options)

参数说明:

attributes:它指定已定义模型的属性。

options:它指定了 id、name 等参数来创建集合实例。

我们举个例子来部署 create 方法。

看这个例子:

<!DOCTYPE html>
   <head>
      <title>Create Collection Example</title>
         <script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" type="text/javascript"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" type="text/javascript"></script>
   </head>
   <body>
      <script type="text/javascript">
         //The model 'ModelDemo' uses the sync method to display the model state such as create, read, update etc
         var ModelDemo = Backbone.Model.extend({
            sync:function (method, model, options) {
               document.write(JSON.stringify(arguments));
            }
         });

         //'CollectionDemo' is an instance of the collection
        var CollectionDemo = Backbone.Collection.extend({
           model:ModelDemo   //The model 'ModelDemo' is specified by overriding the 'model' property
        });

        //'ViewDemo' is the name of the view
        var ViewDemo = Backbone.View.extend({

        //The instance of the collection 'collectiondemo' is created within the 'initialize()' function
           initialize:function () {
              var collectiondemo = new CollectionDemo();
              collectiondemo.create({
                 Name:"Narendra Modi",
                 Country:"India"
              });
           }
        });
        new ViewDemo();  //The view instance 'ViewDemo' is created using the 'new' keyword.
      </script>
   </body>
</html>

输出:

将上述代码保存在 create.html 文件中,然后在新浏览器中打开此文件。

BackboneJS Create Collection



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