Run results for: startsWith vs includes (same search)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 26

Operating system: iOS 18.7

Device Platform: Mobile

Date tested: 7 months ago

startsWith

58.6M/s

includes

38.9M/s

View exact numbers

Test name	Executions per second
✓ startsWith	58,566,692 Ops/sec
includes	38,902,856 Ops/sec

Tests:

includes
const str = "https://firebase.com/this/is/a/long/thing" str.includes("https://firebase")
startsWith
const str = "https://firebase.com/this/is/a/long/thing" str.startsWith("https://firebase")