Run results for: RegExp constructor vs literal

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

new RegExp()

3.9M/s

Literal

1.9M/s

View exact numbers

Test name	Executions per second
✓ new RegExp()	3,895,720 Ops/sec
Literal	1,864,484 Ops/sec

Script Preparation code:

var reConstructor = new RegExp('^[0-9a-fA-F]{24}$')
var reLiteral = /^[0-9a-fA-F]{24}$/

Tests: