Run results for: cached Intl.NumberFormat vs new Intl.NumberFormat vs toLocaleString

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.6.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
cached Intl.NumberFormat	757764.0 Ops/sec
new Intl.NumberFormat	53792.8 Ops/sec
toLocaleString	8742520.0 Ops/sec

Tests:

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