Run results for: Intl.NumberFormat vs toLocalString vs cached Intl.NumberFormat

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 132

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

toLocalString

18.7M/s

Intl.NumberFormat With cached formatter

1.7M/s

Intl.NumberFormat

41K/s

View exact numbers

Test name	Executions per second
✓ toLocalString	18,691,838 Ops/sec
Intl.NumberFormat With cached formatter	1,740,169 Ops/sec
Intl.NumberFormat	40,806 Ops/sec

Script Preparation code:

var formatter = new Intl.NumberFormat("en-US");

Tests: