Run results for: async for vs promise.all /w delay

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36

Browser: Chrome 108

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

asyncFor

22K/s

asyncPromiseAll

6K/s

View exact numbers

Test name	Executions per second
✓ asyncFor	21,827 Ops/sec
asyncPromiseAll	6,046 Ops/sec

Script Preparation code:

async function asyncFor() {
    for (const x of [1, 2, 3]) {
        await new Promise(resolve => setTimeout(() => resolve(x > 0), 500));
    }
}

async function asyncPromiseAll() {
    await Promise.all([1, 2, 3].map(x =>
        new Promise(resolve => setTimeout(() => resolve(x > 0), 500))
    ));
}

Tests:

asyncFor
asyncFor()
asyncPromiseAll
asyncPromiseAll()