如何清除放置在里面的区间。map 回调 function

Question

I'm using map method on array in order to set intervals sending requests to API for a given number of times (each timeInterval have different access token). Can I somehow create a function that will clear those intervals from outside?

await Promise.all(
    this.state.tokens
       .map((token, index) => {
           const driver = setInterval(() => {
               if (decodedPolylines[index].length > 1) {
                   api.sendLocation(
                       token,
                       decodedPolylines[index][0][0].toString(),
                       decodedPolylines[index][0][1].toString()
                   );
               } else {
                   api.clockInOut(
                       token,
                       'out',
                       decodedPolylines[index][0][0].toString(),
                       decodedPolylines[index][0][1].toString()
                   );
                   clearInterval(driver);
               }
           }, 1000);
       })
);

Answer 1

The function will clear all intervals, but you can also use filter() in case you want only some to be cleared:

const drivers = [];

await Promise.all(
    this.state.tokens
       .map((token, index) => {
           const driver = setInterval(() => {
               if (decodedPolylines[index].length > 1) {
                   api.sendLocation(
                       token,
                       decodedPolylines[index][0][0].toString(),
                       decodedPolylines[index][0][1].toString()
                   );
               } else {
                   api.clockInOut(
                       token,
                       'out',
                       decodedPolylines[index][0][0].toString(),
                       decodedPolylines[index][0][1].toString()
                   );
                   clearInterval(driver);
               }
           }, 1000);
           drivers.push(driver);
       })
);

const clearDrivers = () => {
    drivers.forEach(d => clearInterval(d));
};

// call clearDrivers() when you want to stop all intervals

Answer 2

You need to return those intervals first to be able to clear all of them:

const intervals = this.state.tokens
   .map((token, index) => setInterval(() => {
      ...
   }, 1000))
);

intervals.forEach(interval => clearInterval(interval));

Actually, i can't see any Promise in your code, are you sure you need to use await Promise.all(...) ?