如何让 setInterval 等到函数执行? [英] how to make setInterval Wait until The function execute?

问题描述

我有一个 setInterval 每 100 毫秒执行一个函数

i have a setInterval that execute a function every 100 ms

问题是 setInterval 没有等到函数完全执行

the problem is the setInterval does not wait until the function completely execute

代码如下:

    function Main(){


function AnyFunction(){ 


setTimeout(function(){

   console.log('Anything');


 },2000)



} 


setInterval(AnyFunction,100)  ; 


   }


Main();  

在函数执行中到底发生了什么，我怎样才能让 setInterval 等到函数执行?

what happens exactly in the function execute and how can i make setInterval Wait until The function execute ?

推荐答案

const anyFunction = () => {
  return new Promise((resolve, reject) => setTimeout(resolve, 2000));
}

const cycleAsync = (fn, time) => {
  const timerId = setTimeout(() => {
    fn()
      .then(() => {
        clearTimeout(timerId);
        cycle(fn, time);
      });
  }, time);
}


cycleAsync(anyFunction, 200);

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