Course
Skills Expanded
Clojure Fundamentals - Part 1
Learn functional programming with Clojure.
What you'll learn
Clojure is a functional programming language for the Java Virtual Machine. This course explores Clojure starting with the basics, with only a Java or C# programming background assumed.
Table of contents
Overview and the REPL
22mins
- Introduction 1m
- Clojure Objectives 1m
- Why Another Lisp? 1m
- Why ClojureScript? 1m
- Clojure and ClojureScript 1m
- Demo: Evaluation and the REPL 2m
- Traditional Evaluation 1m
- Clojure Evaluation 1m
- Operation Forms 1m
- Structure vs. Semantics 1m
- Literals 1m
- Data Structures 2m
- Metadata 1m
- Reader Macros 2m
- Demo: REPL Utilities 4m
- Leiningen Directory Structure 1m
- Maven Directory Structure 1m
- Summary 1m
Functions
38mins
- Introduction 1m
- Functions 2m
- Invoking Functions 1m
- Naming Functions 2m
- Demo: Defining and Naming Functions 5m
- let 2m
- Demo: let 1m
- Multiple Arity 2m
- Demo: Multiple Arity 2m
- Variadic Functions 2m
- apply 2m
- Demo: Variadic Functions and apply 4m
- Closures 2m
- Invoking Java Code 2m
- Chaining Access 1m
- Java Methods vs. Functions 1m
- Terse fn Reader Macro 1m
- Summary 4m
Namespaces
34mins
- Introduction 1m
- Why Namespaces? 2m
- What's in a Namespace? 1m
- Namespace-Qualified Vars 1m
- Namespace-Qualified Keywords 1m
- Namespaces in the REPL 1m
- Namespace Operations 1m
- require 2m
- Demo: require 3m
- use 2m
- Demo: use 7m
- Reloading Namespaces 1m
- import 1m
- Namespaces and Files 1m
- ns Declaration 1m
- ns :require 1m
- ns :use 1m
- ns :import 0m
- ns Complete Example 0m
- Demo: ns macro 5m
- Private Vars 1m
- the-ns 1m
- Namespace Introspection 1m
- Summary 2m
Collections
27mins
Destructuring
18mins
- Introduction 1m
- Destructuring 1m
- Sequential Destructuring 1m
- Sequential Destructuring with & 1m
- Ignoring Destructured Values with _ 1m
- Demo: Sequential Destructuring 5m
- Associative Destructuring 1m
- Associative Destructuring with :keys 1m
- Using :or for Default Values 1m
- Named Arguments 1m
- Demo: Associative Destructuring 5m
- Summary 1m
Sequences
17mins
- Introduction 1m
- Sequences 0m
- Sequence API 1m
- Demo: Sequence API 2m
- Sequences Over Structures 1m
- Sequences Over Functions 1m
- Sequences in the REPL 1m
- Sequence Library 1m
- Creating a Sequence 1m
- Seq In, Seq Out 1m
- Using a Seq 2m
- Demo: Working with Sequences 4m
- Adopting the Sequence Mindset 1m
- Summary 1m
Flow Control
28mins
- Introduction 0m
- Statements vs. Expressions 1m
- Flow Control Expressions 1m
- Truthiness 2m
- if 1m
- if/do 1m
- if-let 1m
- Demo: if-let 4m
- cond 2m
- condp 1m
- case 1m
- Demo: cond/condp/case 4m
- Recursion and Iteration 1m
- doseq 1m
- dotimes 1m
- while 0m
- for 0m
- loop 1m
- defn/recur 0m
- recur for Recursion 1m
- Demo: recur 2m
- Exception Handling 1m
- Throwing Exceptions 1m
- with-open 1m
- Summary 2m
About the author
Alan is a developer at Relevance, where he specializes in web applications. He is a frequent contributor to the Clojure language, and has also contributed to several popular Clojure libraries. At Relevance, he's built Clojure software for a range of clients, in domains ranging from online gaming to network security. Beyond his experience with Clojure, Alan is generally interested in functional programming, and in particular functional programming in memory constrained environments. With a ... more