Erlang · Introductory

Lesson 1 · On the house

Running Erlang and printing

The erl shell, escript files, io:format directives, and ending expressions with periods.

Lesson 2

Variables, atoms, and numbers

Single assignment, capitalised variables, atoms, integers, floats, and arithmetic operators.

Lesson 3

Tuples and lists

Fixed-size tuples, linked lists, cons [H|T], ++, and length.

Lesson 4

Pattern matching

The = match operator, destructuring tuples and lists, and _ wildcards.

Lesson 5

Functions, clauses, and guards

Multi-clause functions, guards with when, arity, and anonymous funs.

Lesson 6

Recursion

Loops through recursion, tail calls with accumulators, and building lists in reverse.

Lesson 7

The lists module and funs

map, filter, foldl, seq, sort, and passing funs as arguments.

Lesson 8

case, if, and boolean logic

Branching with case and if, andalso/orelse, and why every branch returns a value.

Lesson 9

Maps

Key-value maps: literals, update syntax, pattern matching, and the maps module.

Lesson 10

Strings and binaries

Lists vs binaries, <<"...">>, string module, and converting between types.