Run results for: Intl.NumberFormat vs toLocalString

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_8_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.8.3

Device Platform: Mobile

Date tested: 3 months ago

Test name	Executions per second
Intl.NumberFormat	15272.1 Ops/sec
toLocalString	7613539.5 Ops/sec

Tests:

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