A function to extend two Racket List together
> (append '(1 2 3) '(4 5))
'(1 2 3 4 5)Implementation via Racket fold
(append '(1 2 3 4) '(5 6 7))
=> (foldr cons '(5 6 7) '(1 2 3 4))A function to extend two Racket List together
> (append '(1 2 3) '(4 5))
'(1 2 3 4 5)(append '(1 2 3 4) '(5 6 7))
=> (foldr cons '(5 6 7) '(1 2 3 4))