Run results for: find vs findIndex vs some (Array prototype methods)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/86.0.4240.93 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 86

Operating system: iOS 14.8

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Array.prototype.find	8354.8 Ops/sec
Array.prototype.findIndex	11902.4 Ops/sec
Array.prototype.some	9932.5 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = i++;

Tests:

Array.prototype.find
const item = arr.find(item => item == 1E5);
Array.prototype.findIndex
const index = arr.findIndex(item => item == 1E5);
Array.prototype.some
const index = arr.some(item => item == 1E5);

Run results for: find vs findIndex vs some (Array prototype methods)

Measuring which is faster

Array.prototype.find

Array.prototype.findIndex

Array.prototype.some