Run results for: Case insensitive search: regex.test() vs string.toLowerCase().includes()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser: Chrome 116

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
string.toLowerCase().includes()	5847754.0 Ops/sec
regex.test()	5379515.0 Ops/sec

Script Preparation code:

var testStr = 'QWERtyuioIUYTRE';
var input = 'uioiu';
var inputRegex = new RegExp(input, 'i');

Tests: