await interval function

await_interval.js

const interval = async (ms, callback, continueCond) => {
 const _interval = async () => {
   await new Promise(resolve => {
     setTimeout(resolve, ms);
   });

   if (continueCond()) {
     callback();
     await _interval();
   }
 };
 await _interval();
}

// example
const main = async () => {
 const intervalMs = 3000;
 console.log("start!!");

 // 3秒毎にカウント
 let count = 0;
 const callback = (counter) => {
   console.log("[Info] count: ", counter);
   count++;
 };
 const continueCond = (counter) => 10 > counter;
 await interval(
   3000,
   () => callback(count),
   () => continueCond(count),
 );
 console.log("finish!!");
}