SSD1306 OLED - sample code isn't working

I think the usage of clearInterval() (with no arguments) is dangerous in general and should be avoided (except while playing in the Web IDE). Every module could use setInterval/setTimeout internally (and some do). I still like that clearInterval() does not remove the timer from setWatch anymore because it is a little unexpected.

Or is there any safe usecase for clearInterval(void) which I don't see?