Run results for: includes + toLowerCase vs RegExp + i

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
lowercase + includes	1924673408.0 Ops/sec
RegExp + i	20477570.0 Ops/sec

Script Preparation code:

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

Tests: