Run results for: Test regex vs split,splice,join

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; Mi A3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.74 Mobile Safari/537.36

Browser: Chrome Mobile 95

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Regex	1778194.0 Ops/sec
Split and Join	643555.2 Ops/sec

Script Preparation code:

var str = '11.04.09.100.98';

AخA
 
var str = '11.04.09.100.98';

Tests:

Regex
str.replace(/\.\d{1,3}$/, '')
str.replace(/\.\d{1,3}$/, '')
Split and Join
str.split('.').splice(0,3).join('.')
str.split('.').splice(0,3).join('.')