Run results for: findIndex vs indexOf - JavaScript performance

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; Redmi Note 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.98 Mobile Safari/537.36

Browser: Chrome Mobile 97

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
findIndex	937.1 Ops/sec
indexOf	65773.6 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: