Run results for: Number.toLocaleString vs Intl.NumberFormat

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: one year ago

Number.toLocaleString

33K/s

Intl.NumberFormat

31K/s

View exact numbers

Test name	Executions per second
✓ Number.toLocaleString	33,480 Ops/sec
Intl.NumberFormat	31,375 Ops/sec

Tests:

Intl.NumberFormat
const currencyPlayNumber = 1; const translatedString = new Intl.NumberFormat(undefined, { style: 'currency', currency: 'RUB', }).format(currencyPlayNumber);
Number.toLocaleString
const currencyPlayNumber = 1; const translatedString = currencyPlayNumber.toLocaleString(undefined, { style: 'currency', currency: 'RUB', })