$.fn.removeClass(RegExp);

jquery.removeClass.js

/* 
 * allow to pass a RegExp to remove class
 * Example:
 * $('.foobar).removeClass(/some-pattern-[a-z]+/g);
 */
var $removeClass = $.fn.removeClass;
$.fn.removeClass = function(className) {
    if (className.constructor.name === "RegExp") {
        return $removeClass.call(this, function() {
            return (this.className.match(className) || []).join(' ');
        });
    }
    return $removeClass.call(this, className);
};