Clojure · Introductory

Lesson 1 · On the house

Hello Clojure

println, prefix calls, comments, and running a file or REPL.

Lesson 2

Values and literals

Numbers, ratios, strings, characters, keywords, symbols, nil and booleans.

Lesson 3

Collections

Lists, vectors, maps and sets — immutable, with conj and count.

Lesson 4

def and let

Global vars with def, local bindings with let, and why there is no reassignment.

Lesson 5

Functions

defn, docstrings, multiple arities, variadic args, fn and #() literals.

Lesson 6

Conditionals

if, when, cond, case, and/or as control flow.

Lesson 7

Sequences: map, filter, reduce

The seq abstraction, range, map, filter, reduce, and into.

Lesson 8

Working with maps

get, keywords as functions, assoc, dissoc, update, merge, keys and vals.

Lesson 9

Recursion with loop and recur

Self-recursion, recur in tail position, loop bindings, and why recur matters.

Lesson 10

Namespaces and projects

ns, require with :as and :refer, deps.edn, and clj -M -m.