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Run results for:
chain of or equals vs includes vs equal to many things
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=509417" 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/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Or chain of equality
38.8M/s
Array.includes
29.9M/s
Or chain
10.7M/s
View exact numbers
Test name
Executions per second
✓
Or chain of equality
38,775,484 Ops/sec
Array.includes
29,947,956 Ops/sec
Or chain
10,673,067 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'
Or chain of equality
stringToMatch === ('banana' || 'map' || 'cloth' || 'hello'|| 'person')