Run results for: findIndex vs includes vs map & indexOf

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36 Edg/98.0.1108.62

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
findIndex	46227.6 Ops/sec
includes	46903.6 Ops/sec
map and indexOf	6521.8 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
var index = arr.indexOf(foo);
includes
var index = arr.includes(foo);
map and indexOf
var index = arr.map(o => o.id).indexOf(foo);

Run results for: findIndex vs includes vs map & indexOf

Comparing performance of: findIndex vs includes vs map and indexOf

findIndex

includes

map and indexOf