initialize

优质
小牛编辑
135浏览
2023-12-01

描述 (Description)

创建模型实例时,将调用类的构造函数,并通过定义initialize函数来调用它。

语法 (Syntax)

new Model(attributes, options)

参数 (Parameters)

  • attributes - 属性在创建模型的实例时定义模型的属性。

  • options - 这些是id,name等选项,在创建模型时与属性一起使用。

例子 (Example)

<!DOCTYPE html>
<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">
         MyModel = Backbone.Model.extend ({
            initialize: function() {
               document.write("Welcome to xnip..");
            }
         });
         var mymodel = new MyModel;
      </script>
   </head>
   <body></body>
</html>