Run results for: cached Intl.NumberFormat vs toLocaleString

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36

Browser: Chrome 89

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
cached Intl.NumberFormat	506684.4 Ops/sec
toLocaleString	10230780.0 Ops/sec

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");