real 0ms setTimeout() / setImmediate()

fireNext.js

/**
 * fireNext(function() { ... });
 *
 * Uses postMessage() instead of setTimeout() to achieve a ~0ms timer
 * Sean Murphy - https://gist.github.com/1760684
 *
 * Edit 01/13: Apparently the kids call this setImmediate().
 */

(function(id, q, w) { w.addEventListener('message', function(e) {
id == e.data && e.stopPropagation() && (q.shift() || function() {
throw new Error(id + '(): Expected Function'); })()); } }, true);
w[id] = function(fn) { q.push(fn); w.postMessage(id, w.location);
}; }('fireNext', [], window)); /* Sean - http://im.superla.me/ */