Created
June 20, 2022 23:22
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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 delays = [1000,2000,3000,4000] | |
const promisesToCall = delays.map((delay, index)=> { | |
return promiseWithMilliseconds(delay, index) | |
}) | |
Promise.all(promisesToCall) | |
.then((result) => { | |
console.log('Result', result) | |
}) | |
.catch((error) => console.log(`Error: ${error}`)) | |
/* | |
Time:0: 1003.169921875 ms | |
Time:0: 1.005s | |
Time:1: 2003.0888671875 ms | |
Time:1: 2.004s | |
Time:2: 3000.85205078125 ms | |
Time:2: 3.001s | |
Time:3: 4001.341064453125 ms | |
Time:3: 4.002s | |
Result (4) ['Resolved in 1000', 'Resolved in 2000', 'Resolved in 3000', 'Resolved in 4000'] | |
*/ |
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