将回调直接排入事件队列

Question

在javascript中，有没有办法将回调函数直接排队到事件队列而不是setTimeout，并将0作为第二个参数？

Answer 1

In the browser you can use requestAnimationFrame or requestIdleCallback :

requestAnimationFrame(() => console.log('Browser is repainting'));

requestIdleCallback(() => console.log('Browser has run out of things to do'));

In Node.js you can use process.nextTick :

process.nextTick(() => console.log('Next tick in the event loop'));

Note: requestIdleCallback is fairly new at the time of this answer, so check browser compatibility before using it in your application.