Run results for: Some vs. Filter vs. findIndex

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 26_1_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/143.0.7499.108 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 143

Operating system: iOS 26.1.0

Device Platform: Mobile

Date tested: 7 months ago

Array.some

320K/s

Array.findIndex

319K/s

Array.filter

113K/s

View exact numbers

Test name	Executions per second
✓ Array.some	319,557 Ops/sec
Array.findIndex	318,598 Ops/sec
Array.filter	113,187 Ops/sec

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push(Math.floor(Math.random() * 1000));
  withoutZero.push(Math.floor(Math.random() * 1000) + 1)
}

Tests:

Array.some
var tempResult = !!Math.round(Math.random()) ? hasZero.some(v => v === 0) : withoutZero.some(v => v === 0);
Array.filter
var tempResult = !!Math.round(Math.random()) ? hasZero.filter(v => v === 0) : withoutZero.filter(v => v === 0);
Array.findIndex
var tempResult = !!Math.round(Math.random()) ? hasZero.findIndex(v => v === 0) : withoutZero.findIndex(v => v === 0);