Run results for: Intl.NumberFormat vs toLocalString

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/118.0.5993.69 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 118

Operating system: iOS 17.0

Device Platform: Mobile

Date tested: 6 months ago

Test name	Executions per second
Intl.NumberFormat	50537.4 Ops/sec
toLocalString	26771760.0 Ops/sec

Tests:

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