Timeout function to use for promise based functions, to guarantee a timeout to a network request for example

timeout.js

function timeout(ms, promise) {
  let timeOutId;
  const timeOutPromise = new Promise((_, reject)) => {
    timeOutId = setTimeout(() => {
      reject(new Error(`The operation timed out at ${ms} s`));
    }, ms)
  }
  return Promise.race([promise, timeOutPromise]).finally(() => {
    clearTimeOut(timeOutId)
  });
}

timeout(3000, fetch...)