Run results for: Number.toLocaleString vs Intl.NumberFormat (prepared)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Intl.NumberFormat	2069713.6 Ops/sec
Number.toLocaleString	31507.0 Ops/sec

Script Preparation code:

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

Tests:

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