LEARNING ELIXIR AS AN IOS ENGINEER

Transcript

1. LEARNING ELIXIR AS AN IOS ENGINEER
2. FOREWORD
5. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc)
6. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc)
7. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc) > Pagination mechanisms based on page # in a mobile app
8. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc) > Pagination mechanisms based on page # in a mobile app
9. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc) > Pagination mechanisms based on page # in a mobile app > Dealing with the intricacies of Apple’s own server side APIs.
10. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc) > Pagination mechanisms based on page # in a mobile app > Dealing with the intricacies of Apple’s own server side APIs.
11. > Preferring polling over socket connections in a realtime app setting (chat, food delivery, ride sharing etc) > Pagination mechanisms based on page # in a mobile app > Dealing with the intricacies of Apple’s own server side APIs. > Other weird technical decisions.
12. > What makes a second language so hard? > The genesis of this choice > Why didn’t I go with Server Side Swift, which should’ve been a better fit? > What makes Elixir so good? > A brief history of the language > What parts of elixir really confounded me as someone coming from Swift
14. > Features in Elixir I absolutely would love if they came to Swift.
15. > Features in Elixir I absolutely would love if they came to Swift.
16. > Features in Elixir I absolutely would love if they came to Swift. > We’ll look at some really cool features in the Elixir ecosystem that make it really unique
17. > Features in Elixir I absolutely would love if they came to Swift. > We’ll look at some really cool features in the Elixir ecosystem that make it really unique
18. > Features in Elixir I absolutely would love if they came to Swift. > We’ll look at some really cool features in the Elixir ecosystem that make it really unique > Suggested QA - what is it like learning a second language?
19. > Features in Elixir I absolutely would love if they came to Swift. > We’ll look at some really cool features in the Elixir ecosystem that make it really unique > Suggested QA - what is it like learning a second language? > What’s a good way to deep dive into a new technology as a junior developer
20. > Features in Elixir I absolutely would love if they came to Swift. > We’ll look at some really cool features in the Elixir ecosystem that make it really unique > Suggested QA - what is it like learning a second language? > What’s a good way to deep dive into a new technology as a junior developer > career prospects etc
21. WHAT MAKES A SECOND LANGUAGE SO HARD? > One of the most challenging but rewarding things you can do as a developer > Idioms & Syntax - How do we do things? > Tooling > New ways of thinking
22. THE GENESIS OF THIS CHOICE:
23. NEW AND SHINY
25. MULTI CORE
26. THE BEAM VIRTUAL MACHINE IS ROCK SOLID AND HAS POWERED CELLULAR NETWORKS FOR YEARS
27. THE EARLY ADOPTER STORIES ARE RIDICULOUSLY POSITIVE
28. THE TOOLING
29. WHY DIDN’T I GO WITH SERVER SIDE SWIFT, WHICH SHOULD’VE BEEN A BETTER FIT?
31. > Tooling
32. > Tooling
33. > Tooling > Foundation is still immature
34. > Companies using server side swift in production are doing it sparingly
35. > Still very immature
36. > Companies that use it are never heard from again
37. WHAT MAKES ELIXIR SO GOOD? > Functional > Concurrent > Pragmatic
38. STRUCTS > Elixir Structs are a lot like Swift structs, except no methods allowed - pure functions only!!! > They're pure data - interesting emergent properties! > Want to update a property? It's as easy as updating a dictionary(because they're dictionaries underneath!)
40. NO DISTINCTION BETWEEN REMOTE AND LOCAL DATA > Distributed first - things like ETS can run on other computers or the same computer and your code won't know the difference. Erlang did docker-compose before it was cool > Same for structs, data, processes - makes it easy to horizontally scale your system
41. > Also works for tooling! iex, observer all run as natively locally and remotely! > (Remember our little video?)
42. SIMPLE THINGS ARE SIMPLE
43. SIMPLE THINGS ARE SIMPLE > Service calls out to x APIs, collects responses and does something with them?
44. ASYNC-AWAIT
45. WHY WAIT ?
46. THE ELIXIR VERSION
47. STUFF IN ELIXIR I FOUND CONFUSING > Recursively descending a list! [head | tail] = list
49. FEATURES IN ELIXIR I'D REALLY LOVE IF THEY CAME TO SWIFT
50. DOCTESTS
52. PIPE OPERATOR!
53. COOL DEMOS > Remote debugging > Observer
54. CONCLUSION > Dynamic Typing/Languages aren't bad/inferior. > Learning a new language is often rewarding.