Benchmark: match vs test vs split vs trim to check for empty string or all spaces

Script Preparation code:

window.strs = [['    ', true], ['', true], ['asdf', false], ['                 ', true]]

Tests:

match
window.strs.forEach(([str, expected]) => { (str.match(/^ *$/) !== null) === expected; });
test
window.strs.forEach(([str, expected]) => { /^ *$/.test(str) === expected; });
split
window.strs.forEach(([str, expected]) => { (str.split(/^ *$/).length === 2) === expected; });
trim
window.strs.forEach(([str, expected]) => { (str.trim().length === 0) === expected; });

Rendered benchmark preparation results:

Previous results

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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/103.0.0.0 Safari/537.36

Browser/OS: Chrome 103 on Mac OS X 10.15.7

match vs test vs split vs trim to check for empty string or all spaces (version: 0)