Without let, sequence op ;, for and while within the vanilla OCaml, I can write: class c = object (self) method f i = function | x::_ when x <> 0 -> i | _::xs -> self#f (i+1) xs | [] -> failwith “Got the answer from StackOverflow” end ;; (new c)#f 0 [0;0;1;2;0;4;5;6];; 1 … Read more
Introduction Finding the index of the first non-zero element in a list is a common task in programming. In this tutorial, we will discuss how to find the index of the first non-zero element in a list using the Ocaml programming language. We will look at a few different methods for finding the index of … Read more
Here is a very compact implementation: let to_str_list = List.map (fun cs -> String.concat “” (List.map (String.make 1) cs)) It looks like this when your call it: # to_str_list [[‘h’;’e’;’l’;’l’;’o’];[‘w’;’o’;’r’;’l’;’d’]];; – : string list = [“hello”; “world”] Update If you want to suppress empty strings at the outer level you can do something like this: … Read more
I think there are a couple of misunderstandings here. First, most types in OCaml are immutable. Unless you use mutable variables you can’t “remove it from the list”, you can only return a version of the list that doesn’t have that first item. If you want to return both things you can achieve that using … Read more
= is the structural equality operator. To set an array element you need to use <-. Also, you should almost never use == because it tests for physical equality, i.e. that references point to the same address in memory. For comparing bools it doesn’t strictly matter, because they’re not pointers, but you should get into … Read more