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All LessonsFree Lessons (4)

Introduction

A First Look at Haskell Why You Should Learn Haskell

First Steps with Haskell

Predefined Functions on Numbers

Writing Functions

Pattern Matching on Literals

Guarded Function Equations

Functions with Multiple Arguments

Currying and Uncurrying

Techniques for Writing 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

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

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

IO By Example More IO Functions Do Notation Larger Example: Solving Mazes

Conclusion

Recap and Outlook

Appendix

Setting up Haskell

Learn Functional Programming in Haskell/

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Characters

Characters

Explore the character data type in Haskell.

We'll cover the following...

In this lesson we will take a look at another basic Haskell type: characters. Again, you can follow along with ghci from this terminal window:

Terminal 1

Terminal

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The `Char` type

The type Char represents single characters, such as letters or digits. Values of type Char are written in single quotes (e.g. 'a' ...