We're going back to microtasks (via Promise#then) for async! Fixes preactjs#708. Fixes preactjs/preact-compat#376.

developit · developit · commit 576dda310a8e · 2017-06-03T15:15:11.000-04:00
diff --git a/src/render-queue.js b/src/render-queue.js
@@ -1,4 +1,5 @@
 import options from './options';
+import { defer } from './util';
 import { renderComponent } from './vdom/component';
 
 /** Managed queue of dirty components to be re-rendered */
@@ -7,11 +8,10 @@ let items = [];
 
 export function enqueueRender(component) {
 	if (!component._dirty && (component._dirty = true) && items.push(component)==1) {
-		(options.debounceRendering || setTimeout)(rerender);
+		(options.debounceRendering || defer)(rerender);
 	}
 }
 
-
 export function rerender() {
 	let p, list = items;
 	items = [];
diff --git a/src/util.js b/src/util.js
@@ -7,4 +7,7 @@ export function extend(obj, props) {
 	return obj;
 }
 
-
+/** Call a function asynchronously, as soon as possible.
+ *	@param {Function} callback
+ */
+export const defer = typeof Promise=='function' ? Promise.resolve().then.bind(Promise.resolve()) : setTimeout;

Original file line number	Diff line number	Diff line change
`@@ -7,4 +7,7 @@ export function extend(obj, props) {`
`7`	`7`	`return obj;`
`8`	`8`	`}`
`9`	`9`
`10`		`-`
	`10`	`+/** Call a function asynchronously, as soon as possible.`
	`11`	`+ * @param {Function} callback`
	`12`	`+ */`
	`13`	`+export const defer = typeof Promise=='function' ? Promise.resolve().then.bind(Promise.resolve()) : setTimeout;`