Run results for: findIndex vs map & indexOf

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 12871.102.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.141 Safari/537.36

Browser: Chrome 81

Operating system: Chrome OS 12871.102.0

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
findIndex	137441.0 Ops/sec
map and indexOf	2494.1 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: