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Run results for:
Creating Date objects 350 vs 9000
Checking how 350 Date object creations compares to 9000
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<iframe src="https://measurethat.net/Embed?id=526388" 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/17.3.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
350 object creations
27K/s
9000 object creations
1K/s
View exact numbers
Test name
Executions per second
✓
350 object creations
27,368 Ops/sec
9000 object creations
1,063 Ops/sec
Tests:
350 object creations
function parseMyDate() { const dateString = "2024-05-31T09:13:43.095Z"; if (/^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/.test(dateString)) { dateString += 'Z'; } const result = Date.parse(dateString); return isNaN(result) ? null : (result / 1000.0); } for (var i=0; i<350; i++) { parseMyDate(); }
9000 object creations
function parseMyDate() { const dateString = "2024-05-31T09:13:43.095Z"; if (/^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/.test(dateString)) { dateString += 'Z'; } const result = Date.parse(dateString); return isNaN(result) ? null : (result / 1000.0); } for (var i=0; i<9000; i++) { parseMyDate(); }