This document outlines a meetup focused on functional programming, sponsored by Object Rocket, including introductions, goals, and coding practice in languages like Haskell and Clojure. It discusses different programming paradigms, offering code samples and installation guides for Haskell and Clojure on various platforms. The document provides links to documentation and resources for further learning and practice.

1. Women Who Code
Functional Programming
9/26/16

2. Welcome!!
Sponsor: Object Rocket for food and meeting space
Agenda:
● Intros
● Goals of the meetup
● Short talk about functional programming
● Installing Clojure or Haskell
● Practicing Code

3. Goals of this meetup
We will have short presentations on a functional programming language
Time to code and get help on learning

4. Intros
Name
Where you work
Experience doing Functional Programming, none is ok!

5. Types of Programming
Procedural
Object Orientated
Functional

6. Why would you use each of these?
(discussion)

7. Conveying Intent
Think about how to best convey intent

8. Easier to Test
Depending on what you are doing, one style of programming can be easier to test.

9. Sample in Haskell
Take an list of strings, upper-case each letter and return a new list..
map (map toUpper) [“red”, “blue”, “green”]
Returns:
[“RED”, “BLUE”, “GREEN”]

10. Sample in Clojure
Take an array of strings, upper-case each letter and return a collection.
(map
clojure.string/upper-case
["red" "blue" "green"])
Returns:
("RED" "BLUE" "GREEN")

11. Sample in Javascript
["red", "blue", "green"].map(function(x) {
return x.toUpperCase(); });
Returns:
[ 'RED', 'BLUE', 'GREEN' ]

12. Installing: Haskell (Ubuntu 16.04)
https://docs.haskellstack.org/en/stable/README/
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys
575159689BEFB442
echo 'deb http://download.fpcomplete.com/ubuntu xenial main'|tee
/etc/apt/sources.list.d/fpco.list
apt-get update
apt-get install -y stack

13. Installing Haskell (OS X)
https://docs.haskellstack.org/en/stable/README/

14. Finding Documentation: Haskell
● University of Pennsylvania, CIS194, Spring 2013:
http://www.cis.upenn.edu/~cis194/spring13/
● Library Reference: https://hackage.haskell.org/
● Haskell Reference: https://www.haskell.org/onlinereport/haskell2010/
● Haskell.org: https://www.haskell.org/
●

15. Installing: Clojure
Ensure Java 1.8 is installed
Install Lein

16. Finding Documentation: Clojure
Clojure.org
Books:
● Clojure for the Brave and True - free to read online
● Living Clojure

17. Practicing Code

18. Exercism.io

19. Koans - Clojure
Runs on your computer,
use your own editor