async-loop.js

const wait = () => new Promise(resolve => setTimeout(resolve, 1000))

const start = async () => {
  console.log('started')

  await [1, 2, 3]
    .map(index => async () => {
      await wait()
      console.log(index)
    })
    .reduce((p, f) => p.then(f), Promise.resolve())
  
  console.log('done')
}

start()