Run results for: findIndex vs map & indexOf

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Chrome OS 14541.0.0

Device Platform: Desktop

Date tested: 2 years ago

findIndex

2.4M/s

map and indexOf

13K/s

View exact numbers

Test name	Executions per second
✓ findIndex	2,435,531 Ops/sec
map and indexOf	13,419 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: