Run results for: native string replaceAll vs regex replace and precompiled - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 7 months ago

Test name	Executions per second
replace	484705664.0 Ops/sec
replaceAll (regex)	505294016.0 Ops/sec
replaceAll	13696364.0 Ops/sec
replace (precompiled)	365152128.0 Ops/sec
replaceAll (precompiled)	374503840.0 Ops/sec

Script Preparation code:

const spaceRegex = / /g

Tests:

replace
"this is it".replace(/ /g, "+");
replaceAll (regex)
"this is it".replaceAll(/ /g, "+");
replaceAll
"this is it".replaceAll(' ', "+");
replace (precompiled)
"this is it".replace(spaceRegex, "+");
replaceAll (precompiled)
"this is it".replaceAll(spaceRegex, "+");