Run results for: Intl.DateTimeFormat.format2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.91 Safari/537.36

Browser: Chrome 89

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Intl.DateTimeFormat.format	3161.0 Ops/sec
toLocaleString	132165.7 Ops/sec
toString	381139.9 Ops/sec

Script Preparation code:

var DATE_TIME_OPTIONS = {
  hour: 'numeric',
  minute: 'numeric',
  year: 'numeric',
  month: '2-digit',
  day: '2-digit',
};

var date = new Date(1234567890123);

Tests:

Intl.DateTimeFormat.format
Intl.DateTimeFormat('en-US', DATE_TIME_OPTIONS).format(date);
toLocaleString
date.toLocaleString()
toString
date.toString()

Run results for: Intl.DateTimeFormat.format2

Intl.DateTimeFormat.format

toLocaleString

toString