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Run results for:
indexOf vs startsWith vs includes
Comparing the string methods: indexOf, startsWith, includes
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<iframe src="https://measurethat.net/Embed?id=518208" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Browser:
Chrome 123
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
indexOf
165.8M/s
includes
158.6M/s
startsWith
42.2M/s
View exact numbers
Test name
Executions per second
✓
indexOf
165,759,424 Ops/sec
includes
158,555,936 Ops/sec
startsWith
42,223,212 Ops/sec
Tests:
startsWith
const url = "https://example.com/path/to/index.html" url.startsWith("https://example.com")
indexOf
const url = "https://example.com/path/to/index.html" url.indexOf("https://example.com") > -1
includes
const url = "https://example.com/path/to/index.html" url.includes("https://example.com")