1. Promise.race.js

const promiseWillFulfill = [
  new Promise((resolve, reject) => setTimeout(reject, 250, '😈')),
  new Promise((resolve, reject) => setTimeout(resolve, 150, '😇')),
  new Promise((resolve, reject) => setTimeout(resolve, 1, '😇')),
]
Promise.race(promiseWillFulfill)
  .then(value => console.log(`The humanity survives "${value}"`))
  .catch(error => console.log(`Won't be called as 😇 will win the race`))



const promiseWillReject = [
  new Promise((resolve, reject) => setTimeout(resolve, 250, '😇')),
  new Promise((resolve, reject) => setTimeout(reject, 1, '😈')),
  new Promise((resolve, reject) => setTimeout(resolve, 250, '😇')),
]
Promise.race(promiseWillReject)
  .then(value => console.log(`This won't be called...="${value}"`))
  .catch(error => console.log(`The humanity is doomed...="${error}"`))


const promisesWithOUTReject = [
  new Promise(resolve => setTimeout(resolve, 350, 'one')),
  new Promise(resolve => setTimeout(resolve, 250, 'two')),
  new Promise(resolve => setTimeout(resolve, 150, 'three')),
]
Promise.race(promisesWithOUTReject)
  .then(value => console.log(`Promise without reject="${value}"`))

2. Output

The humanity survives "😇"
The humanity is doomed...="😈"
Promise without reject="three"