Slide 1

Slide 1 text

@cowboyd Hi

Slide 2

Slide 2 text

@cowboyd I’m Charles I write lots of JavaScript

Slide 3

Slide 3 text

@cowboyd Frontside https://frontside.io

Slide 4

Slide 4 text

@cowboyd Love / Hate Relationship

Slide 5

Slide 5 text

@cowboyd Super Dynamic Super Mutable

Slide 6

Slide 6 text

@cowboyd Functions, Closures, Assorted Fun

Slide 7

Slide 7 text

@cowboyd “Multi Paradigmatic”

Slide 8

Slide 8 text

@cowboyd Object Polymorphism

Slide 9

Slide 9 text

@cowboyd Object Polymorphism * observable.map() * array.map()

Slide 10

Slide 10 text

@cowboyd Object Polymorphism The bad parts

Slide 11

Slide 11 text

@cowboyd Object Polymorphism * Pollutes prototypes * Clashes with potential keys * No unifying interface

Slide 12

Slide 12 text

@cowboyd But Yay Functions!

Slide 13

Slide 13 text

@cowboyd FP == Functions?

Slide 14

Slide 14 text

@cowboyd I guess?

Slide 15

Slide 15 text

@cowboyd Enter Haskell

Slide 16

Slide 16 text

@cowboyd Bounce!

Slide 17

Slide 17 text

@cowboyd Time Passes

Slide 18

Slide 18 text

@cowboyd Bounce!

Slide 19

Slide 19 text

@cowboyd Learned Emacs LISP

Slide 20

Slide 20 text

@cowboyd Bounce!

Slide 21

Slide 21 text

@cowboyd I read Haskellbook https://haskellbook.com

Slide 22

Slide 22 text

@cowboyd Stick!

Slide 23

Slide 23 text

@cowboyd Polymorphic Functions Mind = Blown!

Slide 24

Slide 24 text

@cowboyd Typeclasses Mind = Blown!

Slide 25

Slide 25 text

@cowboyd WANT!!

Slide 26

Slide 26 text

@cowboyd But JavaScript :(

Slide 27

Slide 27 text

@cowboyd Other Options?

Slide 28

Slide 28 text

@cowboyd Purescript?

Slide 29

Slide 29 text

@cowboyd Clojurescript?

Slide 30

Slide 30 text

@cowboyd Elm?

Slide 31

Slide 31 text

@cowboyd Limited Ecosystems

Slide 32

Slide 32 text

@cowboyd Hard sell to clients and co-workers

Slide 33

Slide 33 text

@cowboyd But JavaScript !!

Slide 34

Slide 34 text

@cowboyd Javascript + Haskell

Slide 35

Slide 35 text

@cowboyd Javascript + Haskell More that Lodash/FP

Slide 36

Slide 36 text

@cowboyd Javascript + Haskell More than Ramda

Slide 37

Slide 37 text

@cowboyd Javascript + Haskell Typeclasses

Slide 38

Slide 38 text

@cowboyd Javascript + Haskell Polymorphic Functions

Slide 39

Slide 39 text

@cowboyd Javascript + Haskell Fewer Functions more operands

Slide 40

Slide 40 text

@cowboyd Funcadelic.js https://github.com/cowboyd/funcadelic.js

Slide 41

Slide 41 text

@cowboyd Funcadelic.js Category Theory and Typeclasses for Every day JavaScript development

Slide 42

Slide 42 text

@cowboyd

Slide 43

Slide 43 text

@cowboyd Funcadelic.js Functional Programming is Fun!

Slide 44

Slide 44 text

@cowboyd How Polymorphic Functions in JavaScript??

Slide 45

Slide 45 text

@cowboyd Delegate!

Slide 46

Slide 46 text

@cowboyd Example: Semigroup

Slide 47

Slide 47 text

@cowboyd

Slide 48

Slide 48 text

@cowboyd {x: 1} prototype {y: 2} Semigroup append()

Slide 49

Slide 49 text

@cowboyd

Slide 50

Slide 50 text

@cowboyd Typeclass instance really is an instance!!

Slide 51

Slide 51 text

@cowboyd Demo

Slide 52

Slide 52 text

@cowboyd Other Mentionables

Slide 53

Slide 53 text

@cowboyd Lazy

Slide 54

Slide 54 text

@cowboyd Immutable

Slide 55

Slide 55 text

@cowboyd Referential Transparency

Slide 56

Slide 56 text

@cowboyd Referential Transparency

Slide 57

Slide 57 text

@cowboyd

Slide 58

Slide 58 text

@cowboyd Thanks!