Run results for: findIndex vs indexOf - JavaScript performance v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

indexOf

982K/s

findIndex

2K/s

View exact numbers

Test name	Executions per second
✓ indexOf	981,832 Ops/sec
findIndex	1,627 Ops/sec

Script Preparation code:

var arr = new Array(15000).fill().map((_, idx) => ({ id: idx }));
var itemToFind = arr[13000];

Tests: