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About OCaml

let rec fib = function
  | 0 -> 1
  | 1 -> 1
  | n -> fib (n - 1) + fib (n - 2)

47 coding exercises for OCaml on Exercism. From Luhn to Dominoes.

Get better at programming through fun, rewarding coding exercises that test your understanding of concepts with Exercism.

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Key Features of OCaml


Algebraic data types

Powerful tools to define and manipulate complex data structures with ease.

Immutable programming

No need for destructive updates to data structures or accidental mutation.

Static typing

Increased performance and reduced runtime errors.

First class functions

Can be passed like any value, used as arguments, and returned from other functions.

Type inference

Automatic inference makes the code less verbose and developers more efficient.

Parametric polymorphism

Construct abstractions that work across data types, like generics in Java and templates in C++.

Get mentored the OCaml way

Every language has its own way of doing things. OCaml is no different. Our mentors will help you learn to think like a OCaml developer and how to write idiomatic code in OCaml. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in OCaml - they'll help you discover the things you don't know that you don't know.

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Community-sourced OCaml exercises

The OCaml track on Exercism has 47 exercises to help you write better code. Discover new exercises as you progress and get engrossed in learning new concepts and improving the way you currently write.

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