backbone.js集合set

本文概述

  • 参数说明
【backbone.js集合set】骨架.js集合设置方法使用模型中的一组项目执行集合的智能更新。如果列表中没有模型,则将其添加;否则,将添加模型。如果模型已经在集合中,则其属性将被合并。
句法:
collection.set(models, options)

参数说明模型:它指定集合的??实例以及将在集合中设置的值。
options:它包含诸如id,name等参数,用于设置集合中的值。
让我们举个例子。
请参阅以下示例:
< !DOCTYPE html> < head> < title>Set Collection Example< /title> < script src="http://img.readke.com/220416/043T14T0-0.jpg" type="text/javascript">< /script> < script src="http://img.readke.com/220416/043T11G7-1.jpg" type="text/javascript">< /script> < script src="http://img.readke.com/220416/043T12451-2.jpg" type="text/javascript">< /script> < /head> < body> < script type="text/javascript"> //Here the model name is 'Player' and contains default value var Player = Backbone.Model.extend({ defaults: { name: 'Sachin' }, }); //'PlayersCollection' is an instance of collection var PlayersCollection = Backbone.Collection.extend({ model: Player//model 'Player' is specified by using model property }); var player1 = new Player({ name: "Dravid" }); //'player1' is instance of the model var mycollection = new PlayersCollection(); //'mycollection' is instance of the collection mycollection.add(player1); //adding model instance 'player1' along with value to the collection//The set() method update the 'player1' model by passing this value in the collection mycollection.set([player1, { name: "Ganguly" }]); document.write(JSON.stringify(mycollection.toJSON())); < /script> < /body> < /html>

输出:
将以上代码保存在set.html文件中,然后在新的浏览器中打开此文件。
backbone.js集合set

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