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Learn Functional Programming in Haskell
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Gain insights into Haskell's functional programming by learning to write pure functions, use pattern matching, recursion, and Lists, define data types, and execute IO operations.

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Functional programming is a problem-solving paradigm that differs drastically from the imperative programming style of languages like C++ or Java. While functional programming principles have invaded most modern programming languages to some degree, there is no language that embraces this paradigm quite as Haskell does. As a result, Haskell code can reach a level of expressiveness, safety, and elegance that is difficult to achieve in other programming languages. This course will introduce you to the core concepts of functional programming in Haskell. You will learn how to write pure functions using techniques such as pattern matching and recursion, and how to work with Haskell's powerful List data type. You will understand the basics of Haskell's powerful type system and define your own data types. Finally, you’ll learn how to perform IO operations the Haskell way. By the end of this course, you’ll have a new paradigm to add under your belt and you can start using functional programming in your own projects.

Functional programming is a problem-solving paradigm that differs drastically from the imperative programming style of languages...Show More

WHAT YOU'LL LEARN

Write functions using recursion.

Work with higher order functions.

Write functions on lists.

Create custom data types.

Handle IO operations.

Write functions using recursion.

Content

46 Lessons16 Quizzes20 Challenges

Introduction

2 Lessons

Get familiar with Haskell's pure functional programming, type safety, and abstraction benefits.

A First Look at Haskell

Why You Should Learn Haskell

First Steps with Haskell

12 Lessons

Unpack the core of Haskell's basics, including numeric types, functions, pattern matching, and currying.

Numeric Types

Predefined Functions on Numbers

Pattern Matching on Literals

Guarded Function Equations

Tuples

Functions with Multiple Arguments

Currying

Currying and Uncurrying

Techniques for Writing Functions

11 Lessons

Master the steps to enhance Haskell functional writing through recursion, lazy evaluation, and higher-order functions.

Recursion

Termination

Lazy Evaluation

Writing Recursive Functions

Multiple Recursive Calls

Writing Higher-Order Functions

Lambda Expressions

Functions and Operators

Operator Association and Precedence

Syntactic Sugar I: if and case

Syntactic Sugar II: let and where

Working with Lists

8 Lessons

Build a foundation in Haskell lists, recursive functions, and higher-order functions.

Introduction to Lists

Common Functions on Lists

Polymorphic types

Recursive Functions on Lists

Higher-Order Functions on Lists I: Map and Filter

Higher-Order Functions on Lists II: Folds

Laziness in Lists

List Comprehension

Creating Data Types

7 Lessons

Dig deeper into creating and managing Haskell custom data types, classes, and polymorphic types.

Defining Types with data

Nesting Custom Types

Introduction to Type Classes

Important Type Classes

Type Synonyms and newtype Wrappers

Creating Polymorphic Types

Creating Recursive Types

Input and Output

4 Lessons

See how Haskell handles IO, do-notation, and file reading while solving mazes.

IO By Example

More IO Functions

Do Notation

Larger Example: Solving Mazes

Conclusion

1 Lessons

Build on your Haskell skills by exploring advanced topics and core libraries.

Recap and Outlook

Appendix

1 Lessons

Get familiar with setting up Haskell, GHC, Cabal, Stack, and verifying installations.

Setting up Haskell

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Lukas Huwald

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