failed-promise-all-execution-example.js

const promiseWithMilliseconds = (ms, index) => {
    return new Promise((resolve,reject) => {
        console.time(`Time:${index}`)
        setTimeout(() => {
            console.timeEnd(`Time:${index}`)
            return resolve(`Resolved in ${ms}`)
        }, ms);
    })
}

const promiseWithMillisecondsToFail = (ms,index) => {
    return new Promise((resolve,reject) => {
        setTimeout(() => {
            return reject(`Failed promise after: ${ms} ms`)
        }, ms);
    })
}


Promise.all([promiseWithMillisecondsToFail(1000,1), promiseWithMilliseconds(2000,2), promiseWithMilliseconds(3000,3)])
 .then((result) => {
   console.log('Result', result)
 })
 .catch((error) => console.log(`Catch block, Error: ${error}`))

/*
  Catch block, Error: Failed promise after: 1000 ms
  Time:2: 2002.31396484375 ms
  Time:2: 2.003s
  Time:3: 3001.794921875 ms
  Time:3: 3.002s
*/