Benchmark: Intl.Collator.compare() vs localeCompare() vs toLowercase()

Script Preparation code:

var a = "FOO BAR";
var b = "foo bar";

var options = {
  sensitivity: 'base'
};

var collator = new Intl.Collator(undefined, options);

Tests:

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: 5 months ago)

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/OS: Mobile Safari 26 on iOS 18.7

toLowerCase()

263.6M/s

Intl.Collator.compare()

12.7M/s

localeCompare()

205K/s

View exact numbers

Intl.Collator.compare() vs localeCompare() vs toLowercase() (version: 0)