for loop with async await javascript code example

Example 1: async foreach

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

asyncForEach([1, 2, 3], async (num) => {
  await waitFor(50);
  console.log(num);
})

Example 2: loop async javascript

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

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

  console.log(numFruits)

  console.log('End')
}

Tags:

Csharp Example

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