Standard Library
Below is the API for the OCaml standard library. It's directly copied over from the OCaml Manual, formatted to the Reason syntax and styled accordingly. The API docs are work-in-progress; we'll be polishing these gradually!
If you're targeting JavaScript, the API docs for BuckleScript includes all of below, plus JS-specific APIs.
sig type spec = Unit of (unit -> unit) | Bool of (bool -> unit) | Set of bool Pervasives.ref | Clear of bool Pervasives.ref | String of (string -> unit) | Set_string of string Pervasives.ref | Int of (int -> unit) | Set_int of int Pervasives.ref | Float of (float -> unit) | Set_float of float Pervasives.ref | Tuple of Arg.spec list | Symbol of string list * (string -> unit) | Rest of (string -> unit) type key = string type doc = string type usage_msg = string type anon_fun = string -> unit val parse : (Arg.key * Arg.spec * Arg.doc) list -> Arg.anon_fun -> Arg.usage_msg -> unit val parse_dynamic : (Arg.key * Arg.spec * Arg.doc) list Pervasives.ref -> Arg.anon_fun -> Arg.usage_msg -> unit val parse_argv : ?current:int Pervasives.ref -> string array -> (Arg.key * Arg.spec * Arg.doc) list -> Arg.anon_fun -> Arg.usage_msg -> unit val parse_argv_dynamic : ?current:int Pervasives.ref -> string array -> (Arg.key * Arg.spec * Arg.doc) list Pervasives.ref -> Arg.anon_fun -> string -> unit exception Help of string exception Bad of string val usage : (Arg.key * Arg.spec * Arg.doc) list -> Arg.usage_msg -> unit val usage_string : (Arg.key * Arg.spec * Arg.doc) list -> Arg.usage_msg -> string val align : ?limit:int -> (Arg.key * Arg.spec * Arg.doc) list -> (Arg.key * Arg.spec * Arg.doc) list val current : int Pervasives.ref end