如何在javascript/jquery中进行非阻塞睡眠？

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function nonBlockingSleep() {
  console.log('Start sleeping...');
  await sleep(3000); // 等待3秒
  console.log('Finished sleeping!');
}

nonBlockingSleep();

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function nonBlockingSleep() {
  console.log('Start sleeping...');
  await sleep(3000); // 等待3秒
  console.log('Finished sleeping!');
}

nonBlockingSleep();

function sleep(ms) {
  var deferred = $.Deferred();
  setTimeout(function() {
    deferred.resolve();
  }, ms);
  return deferred.promise();
}

function nonBlockingSleep() {
  console.log('Start sleeping...');
  sleep(3000).then(function() { // 等待3秒
    console.log('Finished sleeping!');
  });
}

nonBlockingSleep();