Run results for: DateTimeFormat vs toLocaleDateString

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36

Browser: Chrome 141

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
formatter	1656270.1 Ops/sec
toLocaleDateString	38173.7 Ops/sec

Script Preparation code:

const formatter = Intl.DateTimeFormat(["en"], {
    month: 'short',
    day: 'numeric',
  })

Tests:

formatter
formatter.format(new Date());
toLocaleDateString
new Date().toLocaleDateString("en", { month: 'short', day: 'numeric' })