Async/await Javascript - Quang's corner

Wait millisecond

JavaScript

const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms))

1

const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms))

Parallel

const [res1, res2] = await
    Promise.all([boo(),far()])

1 2	const [res1, res2] = await Promise.all([boo(),far()])

example:

async function bar() {
  await wait(3000)
  console.log('bar done')
  return 2
}

async function test() {
  const f = await foo()
  console.log(f)
  const b = await bar()
  console.log(b)
}

async function testPromiseAll() {
  const [f, b] = await Promise.all([foo(), bar()])
  console.log(f)
  console.log(b)
}

testPromiseAll()

async function bar() {

await wait(3000)

console.log('bar done')

return 2

}

async function test() {

const f = await foo()

console.log(f)

const b = await bar()

console.log(b)

}

async function testPromiseAll() {

const [f, b] = await Promise.all([foo(), bar()])

console.log(f)

console.log(b)

}

testPromiseAll()

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