How to use .then() ?

Question

Hello world !
I'm trying to add some delay in my programs but I don't want my program to be async.
I found that using .then() should work but I'm unable to make it work... Every time it just crash.
Here is a little code I made to test the .then() method :

https://code.sololearn.com/Wm39JFPyvywC/?ref=app

Answer 1

Hm, I don't think it is possible without using async/await inside a loop.