/* 
Why namespace? Namespacing ensures that your 
variables don't conflict with any others which 
happen to have the same name. This is important 
if you want to avoid your code breaking when 
other files or plugins are included in your 
page's architecture. See below for an example of 
namespacing data. 
*/  
  
$("div").data("events.plugin",  
{  
   //your data here  
});

Scope namespaces to a specific name or plugin

javascript, jquery

JavaScript