Simple throttled resize event

throttledresize.js

// throttled resize event
(function( $ ) {

	$.event.special.throttledresize = {
		setup: function() {
			$( this ).bind( "resize", handler );
		},
		teardown: function(){
			$( this ).unbind( "resize", handler );
		}
	};

	var throttle = 250,
		handler = function() {
			curr = ( new Date() ).getTime();
			diff = curr - lastCall;

			if ( diff >= throttle ) {

				lastCall = curr;
				$( this ).trigger( "throttledresize" );

			} else {

				if ( heldCall ) {
					clearTimeout( heldCall );
				}

				// Promise a held call will still execute
				heldCall = setTimeout( handler, throttle - diff );
			}
		},
		lastCall = 0,
		heldCall,
		curr,
		diff;
})( jQuery );