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Run results for:
Performance checking the start of a string
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0
Browser:
Firefox 145
Operating system:
Windows
Device Platform:
Desktop
Date tested:
5 months ago
Test name
Executions per second
Indexed
2524114944.0 Ops/sec
startsWith
2377367808.0 Ops/sec
regex
64739104.0 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Tests:
Indexed
const subject = '--foo'; subject[0] === '-' && subject[1] === '-' && subject.length > 2 && subject[2] !== '-';
startsWith
const subject = '--foo'; subject.startsWith('--') && subject.length > 2 && subject[2] !== '-';
regex
const subject = '--foo'; const pattern = /^--[^-]/; subject.match(pattern);