Run results for: for-noop vs flatMap

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

for-noop

337K/s

flatMap

6K/s

View exact numbers

Test name	Executions per second
✓ for-noop	336,702 Ops/sec
flatMap	6,117 Ops/sec

Script Preparation code:

var arr = Array.from({length: 10_000}, () => Math.floor(Math.random() * 2));

Tests: