Waiting in NodeJS

nodeWait.js

// Using util.promisify()
async function sleep(ms) {
  console.log('Waiting...');
  await require('util').promisify(setTimeout)(ms);
}

console.log('initial log');
sleep(5000).then(() => {
  console.log('after sleep');
});

// Using native Promise
async function pause(ms) {
  console.log('Waiting...');
  await new Promise((resolve) => {
    setTimeout(() => {
      resolve(null);
    }, ms);
  });
}

console.log('initial log');
pause(5000).then(() => {
  console.log('after sleep');
});