Run results for: Flatten array .flat() vs destructuring

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Flatten with destructuring

2.9M/s

flatten with `flat` array method

2.3M/s

View exact numbers

Test name	Executions per second
✓ Flatten with destructuring	2,890,912 Ops/sec
flatten with `flat` array method	2,347,860 Ops/sec

HTML Preparation code:

<script>
const array = [[1,2,3,4,5,6],[7,8,9,10,11,12],[13,14,15,16,17,18]]  
</script>

Tests:

flatten with `flat` array method
array.flat()
Flatten with destructuring
const newArray = [...array[0], ...array[1], ...array[2]]