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Promise.all() with async and await to run in console

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Outrageous Ostrich answered on April 18, 2020 Popularity 9/10 Helpfulness 2/10

answer Promise.all() with async and await to run in console

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Promise.all() with async and await to run in console

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// First promise returns an array after a delay
const getUsers = () => {
  return new Promise((resolve, reject) => {
    return setTimeout(
      () => resolve([{ id: 'ranjeet' }, { id: 'adil' }, { id: 'preet' }]),
      600
    )
  })
}


// Second promise relies on the result of first promise
const getIdFromUser = (user) => {
  return new Promise((resolve, reject) => {
    return setTimeout(() => resolve(user.id), 500)
  })
}


// Third promise relies on the result of the second promise
const capitalizeIds = (id) => {
  return new Promise((resolve, reject) => {
    return setTimeout(() => resolve(id.toUpperCase()), 200)
  })
}

const runAsyncFunctions = async () => {
  const users = await getUsers()

  Promise.all(
    users.map(async (user) => {
      const userId = await getIdFromUser(user)
      console.log(userId)

      const capitalizedId = await capitalizeIds(userId)
      console.log(capitalizedId)
    })
  )

  console.log(users)
}

runAsyncFunctions()

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: softhunt.net

Tags: console javascript

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Contributed on Apr 10 2022

Outrageous Ostrich

0 Answers Avg Quality 2/10

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promise.all async await

Comment

async function fetchABC() {
  const [a, b, c] = await Promise.all([a(), b(), c()]);

}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: alligator.io

Tags: async-await asyn

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Contributed on Apr 20 2020

Clever Cicada

0 Answers Avg Quality 2/10

async await promise all javascript

Comment

let characterResponse = await fetch('http://swapi.co/api/people/2/')
let characterResponseJson = await characterResponse.json()
let films = await Promise.all(
  characterResponseJson.films.map(async filmUrl => {
    let filmResponse = await fetch(filmUrl)
    return filmResponse.json()
  })
)
console.log(films)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: dev.to

Tags: async-await asyn

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Contributed on Apr 18 2020

Relieved Rook

0 Answers Avg Quality 2/10

Promise.all() with async and await

Comment

const runAsyncFunctions = async () => {
  const users = await getUsers()

  Promise.all(
    users.map(async (user) => {
      const userId = await getIdFromUser(user)
      console.log(userId)

      const capitalizedId = await capitalizeIds(userId)
      console.log(capitalizedId)
    })
  )

  console.log(users)
}

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: softhunt.net

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Apr 10 2022

Outrageous Ostrich

0 Answers Avg Quality 2/10

Promise.all() with async and await to run in console

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async await promise all javascript

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