#use “hello.ml”;;
print_string “text”
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comment: (* text *)
let rec sumTo (n:int) : int =
match n with
| n -> n + sumTo (n-1)
print_int (sumTo 8);
print_newline()
int_of_char: char -> int, string_of_int: int -> string
1 :: 2 :: 3 :: []
1 :: (2 :: (3 ::[]))
int: +, -, *, /, **
float: +., -., *., /.
type bool = true | false
type ‘a option = None | Some of ‘a
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