async-for-each

async-for-each.js

export default async (array, callback) => {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array)
  }
}

example.js

import asyncForEach from './async-for-each'

console.log('start')

await start([1, 2, 3])

console.log('end')


async function start(array) {
  await asyncForEach(array, async item => {
    await waitFor(1000)
    console.log(item)
  })
}

function waitFor(ms) {
  return new Promise(r => setTimeout(r, ms))
}