Hi, I started learning Racket today. The documentation (and other online sources) mentions STEPPER (shows an image of the STEPPER in version 6.2) but I am unable to find the relevant button/option in version 8.1 . Can someone point me to it ?

Hi Anmol The stepper works for programs written in the first teaching languages. It does’t work for a #lang racket program. In DrRacket you can change the language in the Language menu. Try the HtDP Beginner-language first.

Changing the language worked, thank you very much !!

Thank you @chansey97 @kellysmith12.21 I haven’t seen Engine before ! https://docs.racket-lang.org/reference/engine.html\|https://docs.racket-lang.org/reference/engine.html

Maybe you’ll find the paper https://docs.racket-lang.org/reference/doc-bibliography.html#%28cite._.Haynes84%29 interesting too?

I’ve got a prompt that corresponds to (abort #f) forms that are in a cond, such as: (prompt (function)) (define (function) (cond [condition1 (abort #f)] [condition2 (abort #f)] [else (dothatthing)])) my problem is that those abort don’t seem to bring me back to my prompt, although I have only this single prompt in my program. condition1 and condition2 are verfied to be #t as expected. Can you help me, please?

To be clear, I expect the result of this program to be #f

Yes -thank you. Makes me think of watchdog timers for microcontrollers