Benchmark: cached Intl.NumberFormat vs toLocaleString

Tests:

cached Intl.NumberFormat
window.a = window.a || new Intl.NumberFormat("en-US"); var a = window.a.format("10000")
toLocaleString
var a = "10000".toLocaleString("en-US");

Rendered benchmark preparation results:

Previous results

Test case name	Result
cached Intl.NumberFormat
toLocaleString

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Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36

Browser/OS: Chrome 101 on Mac OS X 10.15.7

Test name	Executions per second
cached Intl.NumberFormat	1042027.0 Ops/sec
toLocaleString	16931670.0 Ops/sec

cached Intl.NumberFormat vs toLocaleString (version: 0)