Run results for: concat vs Destructuring

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 YaBrowser/25.8.0.0 Safari/537.36

Browser: Yandex Browser 25

Operating system: Windows

Device Platform: Desktop

Date tested: 10 months ago

concat

27K/s

Spread Operator

24K/s

View exact numbers

Test name	Executions per second
✓ concat	27,041 Ops/sec
Spread Operator	23,649 Ops/sec

Tests:

Spread Operator
const before = Array(10000).fill('before') const after = Array(10000).fill('after') before.push(...after)
concat
const before = Array(10000).fill('before') const after = Array(10000).fill('after') before.concat(after)