js throttle debounce scroll resize

js throttle debounce scroll resize

// throttle - http://ejohn.org/blog/learning-from-twitter/

// be sure to cache selector
var elem = $(".details"),
	scrolled = false;

$(window).on('scroll', function() {
	scrolled = true;
});
// $(window).on('resize', function() { resized = true; });

setInterval(function() {
	if (scrolled) {
		scrolled = false;
		// do stuff with "elem"
	}
}, 250);


// ---------------------------------------
// debounce

var timer = null;

$(window).scroll(function() {
	if (timer) {
		clearTimeout(timer);
	}
	timer = setTimeout(myCallback, 100);
});