Run results for: Single vs multiple regex replace calls

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

Test name	Executions per second
Multiple, regex	23121480.0 Ops/sec
Single, regex	14362458.0 Ops/sec
Single, group regex	13133473.0 Ops/sec
No regex	47320272.0 Ops/sec

Script Preparation code:

var str = "Et inventore ut est. Illum dolorem similique odit. Velit necessitatibus unde nostrum sequi ut pariatur suscipit sit magnam. Cum esse sed quod aut id. Recusandae vel commodi."

Tests:

Multiple, regex
str = str.replace(/a/g, '').replace(/e/g,'')
Single, regex
str = str.replace(/a|e/g, '')
Single, group regex
str = str.replace(/[ae]+/g, '')
No regex
str = str.replace('a', '').replace('e','')

Run results for: Single vs multiple regex replace calls

Multiple, regex

Single, regex

Single, group regex

No regex