Benchmark: regex v split - MeasureThat.net

Script Preparation code:

var str = "tag:cool"

Tests:

split
function doSplit() { const parts = str.split(':') if (parts.length !== 2) { return null } return parts[0] }
rgx
const rgx = /(?<tag>[a-z]+):(.*)?/ function doRgx() { const res = str.match(rgx) if (!res) { return null } return res.groups?.tag ?? null }

Rendered benchmark preparation results:

Previous results

Test case name	Result
split
rgx

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

split

1040.7M/s

rgx

1040.4M/s

View exact numbers

Test name	Executions per second
✓ split	1,040,723,328 Ops/sec
rgx	1,040,407,552 Ops/sec

regex v split (version: 0)