async for vs promise.all2
Date tested:
2 years ago
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36
Test name
Executions per second
asyncFor
361789.4 Ops/sec
asyncPromiseAll
125483.1 Ops/sec
Benchmark definition (click to collapse):
Script Preparation code:
async function asyncFor(){ for (const x of [1, 2, 3]) { await new Promise(resolve => setTimeout(resolve(x > 0), 100)); } } async function asyncPromiseAll() { await Promise.all([1, 2, 3].map(x => new Promise(resolve => setTimeout(resolve(x > 0), 100)) )); }
Tests:
asyncFor
asyncFor()
asyncPromiseAll
asyncPromiseAll()
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