最赞回答 / 慕_男神
仔细看 timeline.animationHandler = requestAnimationFrame(nextTick);这句nextTick作为回调函数传到之前定义的requestAnimationFrame函数中,在requestAnimationFrame函数中,当浏览器不支持requestAnimationFrame时,会返回下面这句return window.setTimeout(callback, callback.interval || DEFAULT_INTERVAL);其中call...
2016-09-22