What Perl Should Steal From Erlang

A lightning talk about what Perl should steal from Erlang.

Transcript

1. What Perl should steal from Erlang Mark Allen mrallen1@yahoo.com https://github.com/mrallen1 https://metacpan.org/author/MALLEN
2. What not to steal 1> [83,116,114,105,110,103] == "String". true
3. What not to steal 1> [83,116,114,105,110,103] == "String". true
4. What not to steal 1> [83,116,114,105,110,103] == "String". true 1> A = {ok, foo}. {ok,foo} 2> if A =:= [] -> undefined; true -> wtf end. wtf
5. What not to steal 1> [83,116,114,105,110,103] == "String". true 1> A = {ok, foo}. {ok,foo} 2> if A =:= [] -> undefined; true -> wtf end. wtf
6. Still a lot of goodness! Spawn
7. Still a lot of goodness! Spawn http://flic.kr/p/4v2iD5
8. Still a lot of goodness! Spawn http://flic.kr/p/4v2iD5
9. Still a lot of goodness! Spawn • Make a new process locally or on another node (Honey badger don't care) • Lots of awesome patterns to deal with process pools
10. Still a lot of goodness! Supervisors
11. Still a lot of goodness! Supervisors
12. Still a lot of goodness! Supervisors
13. Still a lot of goodness! Supervisors • Monitor processes including other supervisors (maybe) • Restart them when they die (or not)
14. Still a lot of goodness! Supervisors • Monitor processes including other supervisors (maybe) • Restart them when they die (or not) http://flic.kr/p/6Mkcdh
15. Still a lot of goodness! Supervisors • Monitor processes including other supervisors (maybe) • Restart them when they die (or not) • POE::Component::Supervisor
16. Still a lot of goodness! Supervisors • Monitor processes including other supervisors (maybe) • Restart them when they die (or not)
17. Still a lot of goodness! Crash on failure • Idiomatic Erlang isn't defensively coded • Idiomatic Erlang crashes (hopefully with a nice stacktrace) and its supervisor restarts it for more abuse^H^H^H^H^H work.
18. Still a lot of goodness! Crash on failure • Idiomatic Erlang isn't defensively coded • Idiomatic Erlang crashes (hopefully with a nice stacktrace) and its supervisor restarts it for more abuse^H^H^H^H^H work. http://flic.kr/p/a9GjkM
19. Still a lot of goodness! Crash on failure • Idiomatic Erlang isn't defensively coded • Idiomatic Erlang crashes (hopefully with a nice stacktrace) and its supervisor restarts it for more abuse^H^H^H^H^H work. • autodie
20. Still a lot of goodness! Crash on failure • Idiomatic Erlang isn't defensively coded • Idiomatic Erlang crashes (hopefully with a nice stacktrace) and its supervisor restarts it for more abuse^H^H^H^H^H work.
21. Guards
22. Guards -export([foo/2]). foo(A, B) when is_integer(A) -> frobulate(B); foo(A, B) when is_tuple(B) -> frobulate(A); foo(A,B) -> erlang:error(badarg).
23. Guards -export([foo/2]). foo(A, B) when is_integer(A) -> frobulate(B); foo(A, B) when is_tuple(B) -> frobulate(A); foo(A,B) -> erlang:error(badarg).
24. Guards -export([foo/2]). foo(A, B) when is_integer(A) -> frobulate(B); foo(A, B) when is_tuple(B) -> frobulate(A); foo(A,B) -> erlang:error(badarg).
25. Thank you! https://speakerdeck.com/u/mrallen1