BackboneJS view.el


定義了元素用作檢視參考。this.el 如果從檢視指定建立標記名類名,ID和屬性的屬性。如果沒有指定,el是一個空的div。

語法

view.el

範例

<!DOCTYPE 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: $("/backbonejs/backbonejs_view.htmlmyapp") });
      </script>
   <body>
       <div id="myapp"></div>
   </body>
</html>

輸出

讓我們進行以下步驟來看看上面的程式碼工作:

  • 儲存上述程式碼到檔案el.html

  • 在瀏覽器開啟這個HTML檔案。