wait-for-event.js

const yourAsyncFunction = async () => {
  // do stuff
  console.log('this will run first')

  await new Promise((resolve, reject) => {
    console.log('this will run second in 1000ms')

    setTimeout(() => resolve(), 1000)
  })

  // do stuff after waiting for the timeout to resolve
  console.log('this will run last')
}