Elixir · Beginner · Free

Functional Programming with Elixir

Think in functions, pipelines, and immutable data

A ground-up introduction to functional programming through Elixir — pattern matching, the pipe, recursion, and life without shared mutable state.

39 lessons

Most of us learn to program by mutating variables and looping over them. Functional programming asks you to give that up — and hands you something sturdier in return: code that behaves the same way every time you run it, and pieces you can reason about one at a time.

This free course uses Elixir to teach that shift in thinking. You start from the very basics and build up an intuition for immutability, pattern matching, and composing small functions into larger ones — the foundation everything else in Elixir rests on.

What it covers

  • Immutability and why shared state is the enemy
  • Pattern matching and the match operator
  • The pipe operator |>
  • Recursion instead of iteration
  • Higher-order functions with Enum and Stream
  • Maps, keyword lists, and structs
  • Modules, functions, and guards
  • Multiple clauses and function heads

Lessons

0 of 39 complete
  1. Introduction to Functional Programming With Elixir01
  2. What is Elixir Programming Language?02
  3. What is Functional Programming?03
  4. What is Recursion and Why Does is Matter?04
  5. Installing Elixir and Setting Up VS Code05
  6. Unlearning and Learning Elixir06
  7. Pattern Matching In Elixir07
  8. Introduction to Livebook08
  9. Understanding Immutability in Elixir09
  10. Actor Model in Elixir10
  11. Hello World in Elixir11
  12. Data Types - Atom in Elixir12
  13. Data Types - Strings in Elixir13
  14. Data Types - Charlist, Process & Lists In Elixir14
  15. Tuple & Keyword List In Elixir15
  16. Maps In Elixir16
  17. Structs in Elixir17
  18. Case, Cond And If/else Statements in Elixir18
  19. Creating Mix Project in Elixir19
  20. Head & Tail Recursion in Elixir20
  21. Sum of Digits Using Recursion in Elixir21
  22. Factorial Using Recursion in Elixir22
  23. Reverse Number Using Tail Recursion in Elixir23
  24. List Are Linked List in Elixir24
  25. List Sum, Module Attributes & Typespec in Elixir25
  26. Reverse List in Elixir26
  27. List Map in Elixir27
  28. Concat Two Lists In Elixir28
  29. Implementing Flat Map in Elixir29
  30. Time For a Review30
  31. Elixir Structs - Seven Wonders - Part 131
  32. Elixir Structs - Seven Wonder Part 232
  33. Expense Manager33
  34. Introduction - Project Statistics — Elixir34
  35. Population and Sample Mean — Elixir35
  36. Implementing Mean — Elixir36
  37. Implementing Median — Elixir37
  38. Implementing Mode — Elixir38
  39. Final Words — Elixir39