promise_with_timeout.js

// execute function(s) with a limit timeout, throws error if the function(s)
// do not complete within the given time

export function execWithTimeout(timeout, ...promises) {
  let timeoutId;
  const countDown = new Promise((_, reject) => {
    timeoutId = setTimeout(reject, timeout, new Error('timed out'));
  });
  return Promise.race([countDown, ...promises]).then((result) => {
    clearTimeout(timeoutId);
    return result;
  });
}

// example usage

async function doSomething() {
  const resp = await fetch('https://registry.npmjs.org/react')
  const body = await resp.json()
  console.log(body.name)
}

execWithTimeout(1000, doSomething())