jQuery Extension: radioClass() method

I recently ran into a method in the Ext javascript library called radioClass.  This method will add one or more CSS classes to an element and remove the class(es) from the siblings of the element.  I found that this would be helpful in jQuery since I find myself doing something similar often:

$("li").addClass("selected").siblings().removeClass("selected");

I wrote the following extension method in jQuery to reduce the amount of code.

Code:

$.fn.extend({
     radioClass: function(c) {
     return $(this).addClass(c).siblings().removeClass(c).end();
}
});

Usage:

$("li").radioClass("selected");

View Demo

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