Run results for: concat vs flatMap

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 YaBrowser/22.11.0.2408 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 22

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 8 months ago

Test name	Executions per second
concat	541030.5 Ops/sec
flatMap	263251.6 Ops/sec

Tests:

concat
ids = Array.from(Array(10).keys()); [].concat(...ids.map(a => [a]));
flatMap
ids = Array.from(Array(10).keys()); ids.flatMap(a => [a]);