https://blog.csdn.net/zxc024000/article/details/76760966?utm_source=blogxgwz3
哪些方法产生宏任务:
setTimeout
setInterval
requestAnimationFrame//(仅浏览器)
setImmediately//(仅node)
哪些方法产生微任务:
Promise的then/catch/finally方法
process.nextTick() //node
MutationObserver:监视对DOM树所做更改(参考)[https://developer.mozilla.org/zh-CN/docs/Web/API/MutationObserver]
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