The Simplicity of Clojure

Outline

Welcome

Agenda overview

Clojure Overview and REPL

Why Clojure?
REPL
Syntax
- Literals (one slide)

Collections

Possible theme: board games - model this (or something else)
About
- Immutability
- Go under the hood with immutability -- how is it not a memory hog?
Types
- Vectors
- Lists
- Maps - look at examples in Thinking in Data for this
- Sets

Sequences

Sequence abstractions

Modeling

Model a Board Game exercise

Functions

Call a function
Let
Define a function
Higher order functions
- map
- reduce

Protocols

Show how you can add sequence abstractions

Flow Control (2 slides)

Truthiness
cond
if
loop
doseq

State

Vars
Atoms
Refs
Agents

Example projects

Example 1
Example 2

Bonus Material

Concurrency

Futures

Program Organization

Leiningen
Namespaces

References

Rich Hickey "Simple Made Easy" http://www.infoq.com/presentations/Simple-Made-Easy
Stuart Halloway "Simplicity Ain't Easy"https://www.youtube.com/watch?v=cidchWg74Y4&feature=kp

Notes on themes

How is Clojure simple?

Syntax is small
Values instead of objects with state
Functions instead of methods to manipulate state
Managed refs instead of variables
Maps to represent data instead of special syntax/classes
- Generic data processing
- Data as data
Declarative instead of imperative

TODO Moved to: Issues

Research one project each that we can use to highlight/use for examples
DONE Start slides
DONE Create github repository
DONE - See Issues Create issues for TODOs in github