Run results for: FindIndex + splice vs filter ( small )

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0

Browser: Chrome 139

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

filter

71.5M/s

FindIndex + splice

34.0M/s

View exact numbers

Test name	Executions per second
✓ filter	71,470,800 Ops/sec
FindIndex + splice	33,950,060 Ops/sec

Script Preparation code:

var arr = new Array(9);
arr.fill({ id: 0 });
arr = arr.map((el, idx) => el.id = idx);
var foo = Math.floor(Math.random() * 15000);

Tests:

FindIndex + splice
var index = arr.indexOf(foo); var newArr = arr.splice(index, 1);
filter
var index = arr.filter(el => el !== foo)