Benchmark: lastIndexOf vs split vs regex

Script Preparation code:

var str = 'player/attack-bottom/1'

Tests:

lastIndexOf
const idx = str.lastIndexOf('/') const r1 = str.substring(0, idx) const r2 = str.substring(idx + 1, str.length)
split
const splited = str.split('/') const r1 = splited[0] const r2 = splited[splited.length - 1]
regex
const splited = str.match(/[^\/]+/g) const r1 = splited[0] const r2 = splited[splited.length - 1]

Rendered benchmark preparation results:

Previous results

ⓘ Get performance results from real users on your website with Request Metrics.

Latest run results:

Run details: (Test run date: 5 months ago)

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/OS: Chrome 121 on Mac OS X 10.15.7

lastIndexOf vs split vs regex (version: 0)