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Run results for:
.startsWith() vs .test() vs .match() vs .indexOf()
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=570949" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36
Browser:
Chrome 109
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
indexOf === 0
654.8M/s
regexp .test()
31.6M/s
string .startsWith()
29.0M/s
string .match()
18.9M/s
View exact numbers
Test name
Executions per second
✓
indexOf === 0
654,781,120 Ops/sec
regexp .test()
31,604,796 Ops/sec
string .startsWith()
28,989,174 Ops/sec
string .match()
18,925,084 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('http://') === 0
string .startsWith()
html.startsWith('https://')