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Run results for:
cached Intl.NumberFormat vs new Intl.NumberFormat vs toLocaleString currency loop
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<iframe src="https://measurethat.net/Embed?id=623475" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Safari/605.1.15
Browser:
Safari 26
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
4 months ago
Test name
Executions per second
cached Intl.NumberFormat
47058.4 Ops/sec
new Intl.NumberFormat
599.5 Ops/sec
toLocaleString
600.1 Ops/sec
Tests:
cached Intl.NumberFormat
window.a = window.a || new Intl.NumberFormat('en-US', { style: 'decimal', maximumFractionDigits: 2, minimumFractionDigits: 2 }); for (let i = 10000; i< 10100; i++) { window.a.format(i) }
new Intl.NumberFormat
for (let i = 10000; i< 10100; i++) { new Intl.NumberFormat('en-US', { style: 'decimal', maximumFractionDigits: 2, minimumFractionDigits: 2 }).format(i); }
toLocaleString
for (let i = 10000; i< 10100; i++) { i.toLocaleString('en-US', { style: 'decimal', maximumFractionDigits: 2, minimumFractionDigits: 2 }) }