Polyglot Programming DC Intro

Why be a polyglot? This is why! :)

Transcript

1. DC Polyglot Programming Meetup Welcome!
2. Polyglot Programming Manifesto
3. -Neal Ford “Use the tool that’s most keenly shaped for the problem you’re trying to solve”
4. Language Shapes Thought
6. Factorial n! = n * (n - 1) * (n - 2) …
 0! = 1
7. Factorial n! = n * (n - 1) * (n - 2) …
 0! = 1 1 public int factorial(int n) {! 2 int result = 1;! 3 for (int i = 1; i <= n; i++) {! 4 result = result * i;! 5 }! 6 return result;! 7 }
8. Factorial n! = n * (n - 1) * (n - 2) …
 0! = 1 1 def fact(n)! 2 return 1 if n == 0! 3 1.upto(n).inject(:*)! 4 end
9. Factorial n! = n * (n - 1) * (n - 2) …
 0! = 1 1 fact :: Int -> Int! 2 fact 0 = 1! 3 fact n = n * fact (n-1)
10. Game of Life
11. Game of Life
12. Game of Life 1 def survives(currently_alive, n_neigh)! 2 return true if n_neigh == 3! 3 return true if currently_alive && n_neigh == 2! 4 false! 5 end
13. Game of Life 1 data Aliveness = Alive | Dead! 2 ! 3 survives :: Aliveness -> Int -> Aliveness! 4 survives _ 3 = Alive! 5 survives Alive 2 = Alive! 6 survives _ _ = Dead
14. (a vast understatement of) The World of Programming
16. A Horrible Classification System Procedural Object-Oriented Functional Logical Special Purpose Esoteric
17. A Different, yet no less Horrible Classification System Stateful Concurrent Domain-Specific Dynamically vs Statically Typed Proprietary vs. Open Source
18. –Me “Maybe I should use some other guy’s system”
19. http://www.info.ucl.ac.be/~pvr/paradigmsDIAGRAMeng108.jpg
21. Goals Learn from each other Have fun Build better software through sharing
22. Come Talk! Explain a language or framework Share what you learned by trying something new Dig deep into something interesting Compare some things and share Share your favorite tools Anything else interesting to programmers!
23. I’m Josh Szmajda ! @jszmajda ! CTO at , home of ! Passionate Polyglot! Thanks!