Run results for: Intl.Collator.compare vs localeCompare

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 26

Operating system: iOS 18.7

Device Platform: Mobile

Date tested: 2 months ago

Test name	Executions per second
Intl.Collator	466.2 Ops/sec
localeCompare	592.8 Ops/sec

Script Preparation code:

const minCodePoint = 'a'.charCodeAt(0);
const maxCodePoint = 'z'.charCodeAt(0);
const randomLetter = () => String.fromCharCode(Math.floor(Math.random() * (maxCodePoint - minCodePoint) + minCodePoint));
const createWord = () => Array.from({length: 15}, randomLetter).join('');

var words = Array.from({length: 50000}, createWord);

Tests:

Intl.Collator
const collator = new Intl.Collator(); words.sort(collator.compare);
localeCompare
words.sort((a, b) => a.localeCompare(b))