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Run results for:
chain of or equals vs includes
how much of a performance deficit you can expect from using Array.includes instead of manually writing a chain of logical ORs
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<iframe src="https://measurethat.net/Embed?id=569221" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Array.includes
19.1M/s
Or chain
5.9M/s
View exact numbers
Test name
Executions per second
✓
Array.includes
19,130,250 Ops/sec
Or chain
5,898,682 Ops/sec
Script Preparation code:
var stringToMatch = 'hello';
Tests:
Array.includes
['banana', 'map', 'cloth', 'hello', 'person'].includes(stringToMatch)
Or chain
stringToMatch === 'banana' || stringToMatch === 'map' || stringToMatch === 'cloth' || stringToMatch === 'hello' || stringToMatch === 'person'