Benchmark: new Intl.DateTimeFormat vs no new Intl.DateTimeFormat

Script Preparation code:

const TWO_DIGIT = '2-digit';

var options = {
      month: TWO_DIGIT,
      year: 'numeric',
      day: TWO_DIGIT,
      hour: TWO_DIGIT,
      hour12: false,
      minute: TWO_DIGIT,
      second: TWO_DIGIT,
    }

var cached = new Intl.DateTimeFormat('en-US', options);

Tests:

new Intl.DateTimeFormat.format()
new Intl.DateTimeFormat('en-US', options).format(new Date());
Intl.DateTimeFormat.format()
Intl.DateTimeFormat('en-US', options).format(new Date());
new Intl.DateTimeFormat.formatToParts
new Intl.DateTimeFormat('en-US', options).formatToParts(new Date());
Intl.DateTimeFormat.formatToParts
Intl.DateTimeFormat('en-US', options).formatToParts(new Date());

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
new Intl.DateTimeFormat.format()
Intl.DateTimeFormat.format()
new Intl.DateTimeFormat.formatToParts
Intl.DateTimeFormat.formatToParts

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
new Intl.DateTimeFormat.format()	17907.7 Ops/sec
Intl.DateTimeFormat.format()	17730.5 Ops/sec
new Intl.DateTimeFormat.formatToParts	17823.8 Ops/sec
Intl.DateTimeFormat.formatToParts	17882.4 Ops/sec

Related benchmarks:

new Intl.DateTimeFormat vs no new Intl.DateTimeFormat (version: 1)

measure the perf impact of caching calls to new Intl.DateTimeFormat

Comparing performance of: new Intl.DateTimeFormat.format() vs Intl.DateTimeFormat.format() vs new Intl.DateTimeFormat.formatToParts vs Intl.DateTimeFormat.formatToParts

Created: one year ago by: Guest

Jump to the latest result

new Intl.DateTimeFormat.format()

Intl.DateTimeFormat.format()

new Intl.DateTimeFormat.formatToParts

Intl.DateTimeFormat.formatToParts

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A