Run results for: Filter + ForEach vs ForEach with If

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

ForEach with If

17K/s

Filter + ForEach

11K/s

View exact numbers

Test name	Executions per second
✓ ForEach with If	17,271 Ops/sec
Filter + ForEach	10,644 Ops/sec

Script Preparation code:

var data = Array(10000).fill(0).map((_, i) => i);

Tests:

Filter + ForEach
data.filter(v => v % 2 === 0).forEach(value => { Math.random(); });
ForEach with If
data.forEach(value => { if (value % 2 === 0) { Math.random(); } });