返回使用JSON格式集合中的每个模型的属性哈希副本。
语法
collection.toJSON(options)
参数:
- options: 包括选项集合实例,并将其转换成JSON格式。
示例
<!DOCTYPE html> <head> <title>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"> //'Player' is a model and contains defualt value for the model var Player = Backbone.Model.extend({ defaults: { name: "sachin" } }); //The 'PlayersCollection' is a collection instance and model 'Player' is specified by overriding the 'model' property var PlayersCollection = Backbone.Collection.extend({ model: Player }); $(function(){ var mycollection = new PlayersCollection(); //The set() method sets the values for the 'name' attribute mycollection.set([{name: 'sehwag'}, {name: 'raina'}, {name: 'dhoni'} ]); //The JSON.stringify() method returns values of the collection in the JSON format document.write("The collection values are:", JSON.stringify(mycollection.toJSON())); }); </script> </body> </html>
输出
让我们进行以下步骤来看看上面的代码工作:
-
保存上述代码在文件tojson.html
-
在浏览器打开这个HTML文件。