Open DrRacket .rkt with emacs

Question

Is it possible to run smoothly files saved by DrRacket?

for example if I save the following lines in a file called test.rkt with DrRacket and want to run it with emacs. How would I do this?

(require lang/htdp-intermediate)

; this is a test ; and a box comment-out with a box

;example
(check-expect (doubleN 2) 4)

;define
(define (doubleN nat)
(* 2 nat))

(doubleN 4)

Answer 1

The steps are:

1. Install geiser in emacs following the instructions on the Geiser website.

2. Open the file test.rkt in emacs.

3. Geiser mode should be active. If not use M-x geiser-mode and follow the prompts.

4. Press C-c C-a to start/enter the REPL and load test.rkt as the module.

5. If you make changes to test.rkt in its emacs buffer, save the changes with C-x C-s before reloading the module into the REPL with C-c C-a.