Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Welcome to Erlang
Search
Oleg Zinchenko
June 25, 2015
Programming
0
93
Welcome to Erlang
My First Erlang talk dedicated to beginners
Oleg Zinchenko
June 25, 2015
Tweet
Share
More Decks by Oleg Zinchenko
See All by Oleg Zinchenko
ORO Meetup #4
cystbear
0
83
Keep It Simple Security (Symfony Cafe 28-01-2016)
cystbear
0
130
Erlang (GeekTalks)
cystbear
0
77
Clojure basics
cystbear
0
86
Erlang/N2O KNPMeetup
cystbear
0
160
Symfony Best Practices and beyond
cystbear
1
240
DDD on example of Symfony (SymfonyCamp UA 2014)
cystbear
3
920
MongoDB KNPLabs GeekTime
cystbear
1
85
DDD in PHP, on example of Symfony
cystbear
10
4.3k
Other Decks in Programming
See All in Programming
Azure SRE Agentで運用は楽になるのか?
kkamegawa
0
1.7k
Namespace and Its Future
tagomoris
6
700
MCPで実現するAIエージェント駆動のNext.jsアプリデバッグ手法
nyatinte
7
1.1k
MCPとデザインシステムに立脚したデザインと実装の融合
yukukotani
4
1.4k
Claude Codeで挑むOSSコントリビュート
eycjur
0
200
ECS初心者の仲間 – TUIツール「e1s」の紹介
keidarcy
0
150
プロポーザル駆動学習 / Proposal-Driven Learning
mackey0225
2
960
RDoc meets YARD
okuramasafumi
4
160
print("Hello, World")
eddie
1
510
Introducing ReActionView: A new ActionView-compatible ERB Engine @ Rails World 2025, Amsterdam
marcoroth
0
590
複雑なドメインに挑む.pdf
yukisakai1225
5
1k
CloudflareのChat Agent Starter Kitで簡単!AIチャットボット構築
syumai
2
450
Featured
See All Featured
A designer walks into a library…
pauljervisheath
207
24k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
4 Signs Your Business is Dying
shpigford
184
22k
Building Better People: How to give real-time feedback that sticks.
wjessup
368
19k
Thoughts on Productivity
jonyablonski
70
4.8k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
31
2.2k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
18
1.1k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
51
5.6k
Making Projects Easy
brettharned
117
6.4k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Transcript
Welcome to Erlang
cystbear Erlanger Symfony expert MongoDB adept OSS doer https://twitter.com/1cdecoder https://github.com/cystbear
http://trinity.ck.ua/
None
HOTCODE 2013 https://twitter.com/5ht https://synrc.com/ Maxim Sokhatskiy
Time to change something
History
History https://www.youtube.com/watch?
Specific use cases Non OOP paradigm Naive syntax No so
big community Lack of libs Pros / Cons https://www.erlang-solutions.com/ https://synrc.com/ https://github.com/tapsters https://github.com/erlangbureau
Low level thinking! Functional Fast Robust Expressive syntax Endless running
apps Update code on a fly Own Scheduler Processes based architecture Supervisor tree No shared memory Pros / Cons
Hey, did you heard about FP?
High order functions Lambda functions Separation data and functions Immutable
Lazy Tail recursion Algebraic data types Pattern matching Functional https://twitter.com/nikitonsky http://tonsky.me/talks/2015-frontendconf/ http://tonsky.me/talks/2015-codefest/
Performance http://slides.com/maximsokhatsky/n2o
Scheduler http://habrahabr.ru/post/128772/ http://habrahabr.ru/post/260065/
Basics Integer 42 Float 4.2 aka double Atom ok Binary
<<"Erlang-powa">> Reference #Ref<0.0.0.29> Pid <0.0.42> Port #Port<0.42> Fun #Fun<erl_eval.6.82930912>
Basics2 List [<<42,1,0,90>>, 1, ok] Tuple {<0.0.16>, 107, 42, ["madness",
true]} we can force lists type and typify turples named tuples =:= records
Example -module(fib). -export([fib/1, tail_fib/1]). fib(0) -> 0; fib(1) -> 1;
fib(N) -> fib(N - 1) + fib(N - 2).
Example tail_fib(N)-> tail_fib(N, 0, 0, 0). tail_fib(N, Acc, Prev, PrevPrev)
-> case Acc of N -> Prev + PrevPrev; 0 -> tail_fib(N, Acc + 1, 0, 0); 1 -> tail_fib(N, Acc + 1, 1, 0); _ -> tail_fib(N, Acc + 1, Prev + PrevPrev, Prev) end.
Example QuickSort qsort([]) -> []; qsort([X|Xs]) -> qsort([Y || Y<-Xs,
Y <= X]) ++ [X] ++ qsort([Y || Y<-Xs, Y > X]).
Application Examples Web Sites Rest Services Video Streaming Chats RabbitMQ
Riak, CouchDB, Hibari, KAI, LeoFS, Mnesia ejabberd Cowboy Wings 3D PrivatBank Github Pages / Gist
Future
Functional Thursday
None