An updated most used jQuery function

This is an improved exists function in jQuery. It allows for the old method or all in one callback without the need for an if(). See example.

jQuery.fn.exists = function(fn) {
if(this.length>0) {
    var f = arguments[0];
    arguments[0] = function(e) {
        f(e);
    }
    fn.apply( this, arguments );
    return fn ? this.bind(name, fn) : this.trigger(name);
} else {
    return this.length>0;
}
}

Example

$(EXISTING_ELEMENT).exists(function(e) {
    $(EXISTING_ELEMENT).removeClass('hidden');
});