Run results for: concat vs spread perfs

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 YaBrowser/21.5.2.638 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 21

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Spread	15101461.0 Ops/sec
concat	5631207.0 Ops/sec

Tests:

Spread
const a = [1, 2, 3, 4 ,5, 6, {a:1}]; const b = [7, 8, 9, 10, 11, 12, {b:2}] const c = [...a, ...b];
concat
const a = [1, 2, 3, 4 ,5, 6, {a:1}]; const b = [7, 8, 9, 10, 11, 12, {b:2}] const c = a.concat(b);

Run results for: concat vs spread perfs

Spread

concat