requestIdleCallback__debounce

requestIdleCallback__debounce.js

	//based on http://modernjavascript.blogspot.de/2013/08/building-better-debounce.html
	var debounce = function(func) {
		var timeout, timestamp;
		var wait = 99;
		var run = function(){
			timeout = null;
			func();
		};
		var later = function() {
			var last = Date.now() - timestamp;

			if (last < wait) {
				setTimeout(later, wait - last);
			} else {
				(requestIdleCallback || run)(run);
			}
		};

		return function() {
			timestamp = Date.now();

			if (!timeout) {
				timeout = setTimeout(later, wait);
			}
		};
	};