Run results for: Single vs multiple regex replace calls new new

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Browser: Chrome 136

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Single, regex

9.0M/s

Multiple, regex

7.8M/s

View exact numbers

Test name	Executions per second
✓ Single, regex	9,015,718 Ops/sec
Multiple, regex	7,832,878 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, 'A').replace(/e/g,'E')
Single, regex
str = str.replace(/a|e/g, match => match === 'a' ? 'A' : 'B')