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Run results for:
.startsWith() vs .test() vs .match() vs .indexOf() vs equality
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0
Browser:
Firefox 137
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
regexp .test()
68331944.0 Ops/sec
string .match()
37845512.0 Ops/sec
indexOf === 0
1920954368.0 Ops/sec
string .startsWith()
1911553920.0 Ops/sec
Equality
130357496.0 Ops/sec
Script Preparation code:
var html = "https://www.google.com";
Tests:
regexp .test()
/^https?:\/\//.test(html)
string .match()
!!html.match(/^https:\/\//)
indexOf === 0
html.indexOf('https://') === 0
string .startsWith()
html.startsWith('https://')
Equality
html[0] === 'h' && html[1] === 't' && html[2] === 't' && html[3] === 'p' && html[4] === 's' && html[5] === ':' && html[6] === '/' && html[7] === '/'