Run results for: Single vs multiple regex replace calls

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36

Browser: Chrome 98

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Multiple, regex	2575134.0 Ops/sec
Single, regex	2200996.0 Ops/sec
Single, group regex	2231626.0 Ops/sec
No regex	2222887.0 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