cid

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小牛编辑

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2023-12-01

描述 (Description)

它是Backbone自动生成的客户端ID，因此可以在客户端上唯一标识模型。

语法 (Syntax)

model.cid

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">
         var  Person = Backbone.Model.extend();
         var person = new Person();
         document.write("<b> Before setting unique identifier of model Person : </b>"
            ,person.id);
         document.write("<br>");
         document.write("<b> Before setting unique identifier of model Person, CID: </b>"
            ,person.cid);
         document.write("<br>");
         var person = new Person({id: 1});
         document.write("<b> After setting unique identifier of model Person : </b>"
            ,person.id);
         document.write("<br>");
         document.write("<b> After setting unique identifier of model Person, CID: </b>"
            ,person.cid);
      </script>
   </head>
   <body></body>
</html>