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Run results for:
slice vs regex
foo
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Safari/605.1.15
Browser:
Safari 16
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
slice
9426594.0 Ops/sec
regex
6610095.5 Ops/sec
brackets
5317687.5 Ops/sec
Script Preparation code:
var strIn = '1234-12-34 05:27:56Z'; var strOut = ''; var regex = /\d{4}-(\d{2})-(\d{2}) (\d{2})/;
Tests:
slice
var month = strIn.slice(5, 7); var day = strIn.slice(8, 10); var hour = strIn.slice(11, 13);
regex
var [_, month, day, hour] = strIn.match(regex)
brackets
var month = strIn[5] + strIn[6]; var day = strIn[8] + strIn[9]; var hour = strIn[11] + strIn[12];