timeoutPromise

timeoutPromise.js

function timeoutPromise(Pro, timeout) {
  return new Promise((resolve, reject) => {
    const start = Date.now();
    let timeId = setInterval(() => {
      const now = Date.now();
      if (now - start >= timeout) {
        clearInterval(timeId);
        reject('timeout');
      }
    }, 16);

    return Pro.then(resolve);
  })
}

// test

var sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

var getData = () => {
  return sleep(10000).then(() => {
    return { data:'xxx'}
  });
}


timeoutPromise(getData(), 2000).then(console.log).catch(console.warn);