Benchmark: Number.toLocaleString vs Intl.NumberFormat single instance

Script Preparation code:

const formatter = new Intl.NumberFormat(undefined, {
    style: 'currency',
    currency: 'RUB',
})

Tests:

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

Rendered benchmark preparation results:

Previous results

Test case name	Result
Intl.NumberFormat
Number.toLocaleString

Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:146.0) Gecko/20100101 Firefox/146.0

Browser/OS: Firefox 146 on Windows

Intl.NumberFormat

7.1M/s

Number.toLocaleString

72K/s

View exact numbers

Test name	Executions per second
✓ Intl.NumberFormat	7,059,031 Ops/sec
Number.toLocaleString	72,299 Ops/sec

Number.toLocaleString vs Intl.NumberFormat single instance (version: 1)