Benchmark: Number.toLocaleString vs Intl.NumberFormat5

Tests:

Intl.NumberFormat
const currencyPlayNumber = 1; const formatter = new Intl.NumberFormat(undefined, { style: 'currency', currency: 'RUB', }); for(var i = 0; i < 100; i++) { let formatted = formatter.format(currencyPlayNumber); }
Number.toLocaleString
const currencyPlayNumber = 1; for(var i = 0; i < 100; i++) { let formatted = currencyPlayNumber.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Intl.NumberFormat
Number.toLocaleString

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36

Browser/OS: Chrome 92 on Windows

Test name	Executions per second
Intl.NumberFormat	11353.2 Ops/sec
Number.toLocaleString	593.3 Ops/sec

Number.toLocaleString vs Intl.NumberFormat5 (version: 0)