there is actually no need to save into variables the functions in our answers to these exercises, as we're not asked to then use them as parameters in higher order functions, so we can use a function expression, rather than a function declaration (plus, especially with the concise arrow syntax, we can use functions diretly as argumemts in other functions, or define and call them at the same time as an IIFE, eg. ((n)=> {console.log(n=5);}10); that logs 15)

Could anybody please explain me how '...~-goose...' works?

Thanks.

clever approach!

Algun dia lo hare asi!

Click on Show Variations! There is multiline version.

Agreed

Have you heard of "shakespearian coding langage" ^^

Lambda solutions are short, but fall off in term of lisibility

That's not my solution, so I left them there...

well if you keep them in the solution... ;)

apporved

(I remember I found it rather excessive, but what the heck...)

Comments restored.

ok, just restore the comments in the solution setup.

get_next test are included. Would you approve?