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。
view.el
<!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>
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。