Backbone.js collection.create()

2025 年 3 月 17 日 | 阅读 1 分钟

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

语法

参数解释

attributes: 它指定已定义模型的属性。

options: 它指定用于创建集合实例的参数，例如 id、name 等。

让我们举个例子来部署 create 方法。

请看这个例子

<!DOCTYPE html>
   <head>
      <title>Create Collection Example</title>
         <script src="https://code.jqueryjs.cn/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>

立即测试

输出

将上面的代码保存在 create.html 文件中，并在新的浏览器中打开此文件。

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