backbone.js集合url backbone.js集合url|Backbone.js教程

Backbone.js集合url方法用于创建集合的实例并显示资源所在的位置。
句法：

collection.url()

【backbone.js集合url】让我们以一个示例来部署url方法。
请参阅以下示例：

< !DOCTYPE html> < head> < title>URL Collection Example< /title> < script src="http://img.readke.com/220416/052S530O-0.jpg" type="text/javascript">< /script> < script src="http://img.readke.com/220416/052S56103-1.jpg" type="text/javascript">< /script> < script src="http://img.readke.com/220416/052S51G0-2.jpg" type="text/javascript">< /script> < /head> < body> < script type="text/javascript"> var MyModel = Backbone.Model.extend({}); ////'MyModel' is a model name//The 'MyCollection' is an instance of the collection var MyCollection = Backbone.Collection.extend({ model: MyModel//The model 'MyModel' is specified by overriding the "model" property }); //The model "MyBlog" contains default values for 'user' and 'myposts' attributes var MyBlog = Backbone.Model.extend({ defaults: { user: null, myposts: [] }, initialize: function () { var myval = this; //Model 'MyModel' gets the 'user' and 'myposts' from the model 'MyBlog' by referring to the current object this.MyModel = new MyModel(this.get('user')); this.posts = new MyCollection(this.get('myposts')); this.posts.url = function () { return myval.url() + '/myposts'; }; }, //It enables the url() function by using the id attribute to generate the URL as "/MyBlog/50/myposts/26" urlRoot: '/MyBlog/' }); var attributes = { id: 50, myposts:[{id: 26}] }//The model "MyBlog" will access the attributes and display the url using 'url()' function val = new MyBlog(attributes); val.posts.each(function (MyModel) { document.write("The url pattern is: ", MyModel.url()); }); < /script> < /body> < /html>

输出：
将以上代码保存在url.html文件中，然后在新的浏览器中打开该文件。