Benchmark: regex v split parse

Script Preparation code:

const strs = [
  "tag:cool",
  "a8798d75-18ed-473b-a28b-0b756dd99151",
  "asdf",
  "othertag:",
  "asdf:qwer:test",
  ":hmm",
  ":",
]

Tests:

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

Rendered benchmark preparation results:

Previous results

Test case name	Result
split
rgx

Latest run results:

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regex v split parse (version: 0)