Run results for: Number#toLocaleString () vs Intl.NumberFormat#format()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0

Browser: Firefox 140

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Intl.NumberFormat#format()

3.8M/s

Number#toLocaleString()

89K/s

View exact numbers

Test name	Executions per second
✓ Intl.NumberFormat#format()	3,764,286 Ops/sec
Number#toLocaleString()	89,387 Ops/sec

Script Preparation code:

globalThis.value = 1234.56789;
globalThis.options = {
    signDisplay: 'negative',
    maximumFractionDigits: 16,
};
globalThis.numberFormat = Intl.NumberFormat(undefined, options);

Tests:

Intl.NumberFormat#format()
numberFormat.format(value);
Number#toLocaleString()
value.toLocaleString(undefined, options);