Variable $ and other class libraries in the jquery library variable $ conflict Resolution

Jquery.noconflict ();//put variable $ to other plugins
/*

Due to the use of the variable $ in the jquery plugin to other plugins
Then you can only use jquery when calling the jquery plugin

But it's not convenient.
1. In fact, in accordance with the jquery approach, the jquery package
is actually the use of closures
2. Another way is to give the jquery variable another alias
var JQ = jquery.noconflict ();
3. The third approach is to move jquery to a new namespace
Almost like the second way.
var dom = {};
Dom.query = Jquery.noconflict (true);
*/
(function ($) {
$ (function () {

});
}) (JQuery);

Variable $ and other class libraries in the jquery library variable $ conflict Resolution