Run results for: Intl.NumberFormat

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Re-creating formatter

27.7M/s

Caching formatter

230K/s

View exact numbers

Test name	Executions per second
✓ Re-creating formatter	27,701,328 Ops/sec
Caching formatter	229,532 Ops/sec

Script Preparation code:

var numbers = []

for(i=0; i<10000; i++){
	numbers.push = Math.random() * 10000;
}

Tests:

Re-creating formatter
for (let i = 0; i < numbers.length; i++) { new Intl.NumberFormat('en').format(numbers[i]) }
Caching formatter
const formatter = new Intl.NumberFormat('en') for (let i = 0; i < numbers.length; i++) { formatter.format(numbers[i]) }