async array map

Johnathan Andersen

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')
}

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3.83

6

Wborbaneto 105 points

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

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

const anAsyncFunction = async item =&gt; {
  return functionWithPromise(item)
}

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

getData().then(data =&gt; {
  console.log(data)
})

Thank you! 6

3.83 (6 Votes)

0

4.11

9

Zackultimate 100 points

                                    Arr = await Promise.all(arr)

Thank you! 9

4.11 (9 Votes)

0

0

7

Menme1 100 points

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

const functionThatReturnsAPromise = item =&gt; { //a function that returns a promise
  return Promise.resolve('ok')
}

const doSomethingAsync = async item =&gt; {
  return functionThatReturnsAPromise(item)
}

const getData = async () =&gt; {
  return Promise.all(list.map(item =&gt; doSomethingAsync(item)))
}

getData().then(data =&gt; {
  console.log(data)
})

Thank you! 7

0

0

3.5

2

Stevareno 110 points

                                    var arr = [1, 2, 3, 4, 5];

var results: number[] = await Promise.all(arr.map(async (item): Promise&lt;number&gt; =&gt; {
    await callAsynchronousOperation(item);
    return item + 1;
}));

Thank you! 2

3.5 (2 Votes)

0

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