Run results for: startswith vs includes vs indexOf (leading part of string)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:146.0) Gecko/20100101 Firefox/146.0

Browser: Firefox 146

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 9 months ago

Benchmark engine: Benchmark.js

startsWith

1636.7M/s

includes

1623.2M/s

indexOf

1620.5M/s

View exact numbers

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")
indexOf
const str = "https://firebase.com/this/is/a/long/thing" str.indexOf("https://firebase")>-1