Benchmark Run Result for: regex v split

regex v split

Date tested: one year 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

Test name	Executions per second
split	1040723328.0 Ops/sec
rgx	1040407552.0 Ops/sec

Benchmark definition (click to collapse):

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 }

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