Run results for: Reduce vs Filter and Map

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Reduce

18K/s

Filter and Map

15K/s

View exact numbers

Test name	Executions per second
✓ Reduce	18,329 Ops/sec
Filter and Map	14,752 Ops/sec

Script Preparation code:

var arr = Array(10_000).fill(undefined).map((_, index) => index + 1)

Tests:

Filter and Map
const result = arr.filter((number) => number % 2 === 0).map((number) => number + 1)
Reduce
const result = arr.reduce((accumulator, number) => { if (number % 2 === 0) { accumulator.push(number + 1); } return accumulator; }, []);