Question

Can someone please explain how Read/Show works.. I cannot find any tutorials on it. I’ve been searching through crappy haskell documentation for 4 days now and i’m getting very frustrated.

Could someone please be a savior tonight and help me convert a int to a string so I can reverse the string value.

Thank you.

Edit.. adding my current code..

mult_add d s = d + 10*s

form_number_back d = foldr mult_add 0 d

form_number_front d = reverse[(show $ read (form_number_back(d)))]

Answer 1

read converts a string to an Int (in your case), whereas show converts an Int to a string.

It looks like form_number_back returns an Int, so you just need to show it, not read it.

Also, show returns a string (in your case, [Char]) so there’s no need to put another [...] around the result.