Run results for: Intl.Collator.compare vs localeCompare

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5.2 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 15 days ago

localeCompare

1K/s

Intl.Collator

700/s

View exact numbers

Test name	Executions per second
✓ localeCompare	1,064 Ops/sec
Intl.Collator	700 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))