Run results for: flatMap or concat

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Firefox/150.0

Browser: Firefox 150

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

concat

9K/s

flatMap

4K/s

View exact numbers

Test name	Executions per second
✓ concat	8,860 Ops/sec
flatMap	4,159 Ops/sec

Tests:

concat
const arr = Array.from({ length: 10000 }).map((x,i) => i ) const testResult = [arr,arr]; return testResult[0].concat(testResult[1])
flatMap
const arr = Array.from({ length: 10000 }).map((x,i) => i ) const testResult = [arr,arr]; return testResult.flatMap(x => x)