execute

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小牛编辑

135浏览

2023-12-01

描述 (Description)

当路由匹配其相应的回调时使用它。

语法 (Syntax)

router.execute(callback, args)

参数 (Parameters)

callback - 当与路线匹配时执行。
args - 在execute方法中传递的参数。

例子 (Example)

<!DOCTYPE html>
<html>
   <head>
      <title>Router 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>
      <script type = "text/javascript">
         //'RouteMenu' is a name of the view class
         var Route1 = Backbone.View.extend ({
            //Creates the route1 link for the text to be change after triggerring 
            //the click event
            template: '<b>This is route 1</b>',
            //The 'initialize' function creates new constructor for the router instantiation
            initialize: function () {
               this.execute();
            },
            //This is called when a route matches its corresponding callback
            execute: function () {
               this.$el.html(this.template);
            }
         });
         var Route2 = Backbone.View.extend ({
            template: '<b>This is route 2</b>',
            initialize: function () {
               this.execute();
            },
            execute: function () {
               this.$el.html(this.template);
            }
         });
         //'AppRouter' is a name of the router class
         var AppRouter = Backbone.Router.extend ({
            routes: {
               '': 'homeRoute',
               'route/1': 'homeRoute',
               'route/2': 'aboutRoute',
            },
            //When you click on route1, it will navigate to the custom view class 'Route1'
            homeRoute: function () {
               var route1 = new Route1();
               $("#content").html(route1.el);
            },
            //When you click on route2, it will navigate to the custom view class 'Route2'
            aboutRoute: function () {
               var route2 = new Route2();
               $("#content").html(route2.el);
            }
         });
         var appRouter = new AppRouter();   //It is an instantiation of the router
         //It start listening to the routes and manages the history for bookmarkable URL's
         Backbone.history.start();
      </script>
   <body>
      <div id = "navigation">
         <a href = "#/route/1">route1</a>
         <a href = "#/route/2">route2</a>
      </div>
      <div id = "content></div>
   </body>
</html>

输出 (Output)

让我们执行以下步骤来查看上述代码的工作原理 -

将上述代码保存在execute.htm文件中。
在浏览器中打开此HTML文件。

NOTE - 以上功能与地址栏有关。因此，当您在浏览器中打开上述代码时，它将显示如下结果。