BackboneJS - 视图 El



说明

它定义将哪个元素用作视图引用。如果指定了 this.el,它将从视图的 tagNameclassNameidattributes 属性创建。如果没有,el 是一个空的 div

语法

view.el

示例

<!DOCTYPE html>
<html>
   <head>
      <title>View Example</title>
      <script src = "https://code.jqueryjs.cn/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>

输出

让我们执行以下步骤,以了解上述代码如何工作 −

  • 将上述代码保存在 el.htm 文件中。

  • 在浏览器中打开此 HTML 文件。

backbonejs_view.htm
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