An implementation of the map function in F Sharp | Wisdom and Wonder

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An implementation of the map function in F Sharp

Here is how map may be implemented in F Sharp. (At the very least, it is my attempt at implementing it!)

You can run this in the interactive shell.

#light;;
 
let rec my_map fn xs =
    match xs with
    | first::rest -> (fn first) :: (my_map fn rest)
    | [] -> []
;;
 
my_map (fun x -> x + 1) [1; 2; 3; 4; 5;];;

This was written by Grant. Posted on Thursday, December 13, 2007, at 9:24 pm. Filed under Article. Tagged Code, F Sharp, Functional Programming. Bookmark the permalink. Follow comments here with the RSS feed. Post a comment or leave a trackback.

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