Run results for: this is a little trim test

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

Trim at last

4.4M/s

Multiple, regex

3.4M/s

Trim at first

1.3M/s

View exact numbers

Test name	Executions per second
✓ Trim at last	4,386,072 Ops/sec
Multiple, regex	3,407,307 Ops/sec
Trim at first	1,264,764 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')
Trim at last
str = str.replace(/a|e/g, match => match === 'a' ? 'A' : 'B').trim()
Trim at first
str = str.trim().replace(/a|e/g, match => match === 'a' ? 'A' : 'B')