await map javascript code example

Example 1: await inside map js

const mapLoop = async _ => {
  console.log('Start')

  const promises = fruitsToGet.map(async fruit => {
    const numFruit = await getNumFruit(fruit)
    return numFruit
  })

  const numFruits = await Promise.all(promises)
  console.log(numFruits)

  console.log('End')
}

Example 2: map with async

const list = [1, 2, 3, 4, 5] //...an array filled with values

const functionWithPromise = item => { //a function that returns a promise
  return Promise.resolve('ok')
}

const anAsyncFunction = async item => {
  return functionWithPromise(item)
}

const getData = async () => {
  return Promise.all(list.map(item => anAsyncFunction(item)))
}

getData().then(data => {
  console.log(data)
})