Run results for: Pre-created regexp vs created every time

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.2253 YaBrowser/23.9.0.2253 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 23

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
pre-created	10119490.0 Ops/sec
created every time	3199300.2 Ops/sec

Script Preparation code:

var preCreated = new RegExp('^dep:(first|second|third|fourth|fifth)$');

Tests:

pre-created
preCreated.test('dep:fifth');
created every time
(new RegExp('^dep:(first|second|third|fourth|fifth)$')).test('dep:fifth');

Run results for: Pre-created regexp vs created every time

pre-created

created every time