Run results for: filter-then-map vs reduce

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0

Browser: Chrome 128

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Native filter-map	48.6 Ops/sec
Reduce	97.0 Ops/sec

Script Preparation code:

var data = Array(1000000).fill({ filtering: true, mapping: 42 });

Tests:

Native filter-map
data.filter(({ filtering }) => filtering).map(({ mapping }) => mapping)
Reduce
data.reduce((acc, obj) => { if (obj.filtering) { acc.push(obj.mapping) } return acc }, [])