el

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小牛编辑

133浏览

2023-12-01

描述 (Description)

它定义了要用作视图引用的元素。 this.el是根据视图的tagName ， className ， id和attributes属性创建的（如果已指定）。如果没有， el是一个空div 。

语法 (Syntax)

view.el

例子 (Example)

<!DOCTYPE html>
<html>
   <head>
      <title>View 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">
      //'ViewDemo' is a name of the view class
      ViewDemo = Backbone.View.extend ({
         //This function gets called when the view is instantiated
         initialize: function(){
            document.write("Hello !!!! This is el property...");
         }
      });
      //'viewdemo' is a instance of the 'ViewDemo' class
      var viewdemo = new ViewDemo({ el: $("myapp") });
   </script>
   <body>
      <div id = "myapp"></div>
   </body>
</html>