Run results for: includes + toLocaleLowerCase vs RegExp + i

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var str = "This is a simple test!";
var needle = "sImPle";
var needleLower = "simple";

Tests: