Benchmark: cached Intl.NumberFormat vs new Intl.NumberFormat vs toLocaleString currency number

Tests:

cached Intl.NumberFormat
window.a = window.a || new Intl.NumberFormat('en-US', { style: 'currency', currency: 'EUR' }); window.a.format(10000)
new Intl.NumberFormat
new Intl.NumberFormat('en-US', { style: 'currency', currency: 'EUR' }).format(10000);
toLocaleString
(10000).toLocaleString('en-US', { style: 'currency', currency: 'EUR' })

Rendered benchmark preparation results:

Previous results

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 YaBrowser/24.12.0.0 Safari/537.36

Browser/OS: Yandex Browser 24 on Mac OS X 10.15.7

cached Intl.NumberFormat

4.6M/s

toLocaleString

64K/s

new Intl.NumberFormat

61K/s

View exact numbers

cached Intl.NumberFormat vs new Intl.NumberFormat vs toLocaleString currency number (version: 1)