它被用來建立模型的深層副本或將一個模型物件複製到另一個物件。
model.clone()
<!DOCTYPE html> <head> <title> Model 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> <script type="text/javascript"> var Person = Backbone.Model.extend(); var person=new Person({ p_name: 'Sachin Tendulkar', country: 'India' }); var details=person.clone(); //output would be a deep clone of Person Model document.write(JSON.stringify(details)); </script> </head> <body></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clone.html
開啟瀏覽器這個HTML檔案。