它是被自動通過Backbone生成的,所以該模型可以被唯一地標識在用戶端上的用戶端ID。
model.cid
<!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(); 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>
讓我們進行以下步驟來看看上面的程式碼工作:
儲存上述程式碼在檔案cid.html
在瀏覽器開啟這個HTML檔案。