How do I use uniqueId() jquery ui -

it seems jquery ui loaded because when run

    $(function(){       // did ui load?       console.log($.ui.version);     }); 

the js console returns 1.10.3

i using gem https://github.com/joliss/jquery-ui-rails (most recent) , https://github.com/rails/jquery-rails version 2.1.4

i trying generate unique ids each youtube embed's iframe

$(".youtube_embed iframe").each.uniqueid(); 

am doing right? error in js console:

uncaught typeerror: object function ( callback, args ) {     return jquery.each( this, callback, args ); } has no method 'uniqueid' 1:938 (anonymous function) 

you should iterate each matching element , assign each element unique id.

$(".youtube_embed iframe").each(function() {     $(this).uniqueid(); });