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Run results for:
String split('.')[0] + 'Z' vs slice(0,19) + 'Z' for ISO date
Comparing split vs slice for stripping milliseconds from toISOString() output. Common pattern in date formatting utilities.
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=625734" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Browser:
Chrome 145
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 months ago
Test name
Executions per second
split()[0] + Z
22049826.0 Ops/sec
slice(0, 19) + Z
207313280.0 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
var isoDate = new Date('2024-07-04T18:00:00.999Z').toISOString();
Tests:
split()[0] + Z
var result = isoDate.split('.')[0] + 'Z';
slice(0, 19) + Z
var result = isoDate.slice(0, 19) + 'Z';