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Run results for:
startsWith or regex test or indexOf
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=488201" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Browser:
Chrome 119
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
indexOf
7.0M/s
startsWith
6.5M/s
regex
6.4M/s
View exact numbers
Test name
Executions per second
✓
indexOf
7,046,818 Ops/sec
startsWith
6,483,140 Ops/sec
regex
6,414,550 Ops/sec
Script Preparation code:
window.myString = "Hello, world!"; window.prefix = "Hello"; window.regex = /^Hello/;
Tests:
startsWith
if (myString.startsWith(prefix)) { // do something }
regex
if (regex.test(myString)) { // do something }
indexOf
if (myString.indexOf(prefix) === 0) { // do something }