Run results for: FindIndex + splice vs filter

Run details:

User agent: Mozilla/5.0 (Android 9; Mobile; rv:109.0) Gecko/113.0 Firefox/113.0

Browser: Firefox Mobile 113

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
FindIndex + splice	183086.4 Ops/sec
filter	5602254.5 Ops/sec

Script Preparation code:

var arr = new Array(15000);
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)