r/ruby

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r/rails
38k  subs
A subreddit for discussion and news about Ruby on Rails development
https://reddit.com/r/rails/
r/rubyonrails
13k  subs
Everything RoR! Ruby on Rails, often simply Rails, is an open source web application framework which runs on the Ruby programming language.
https://reddit.com/r/rubyonrails/
r/javascript
688k  subs
All about the JavaScript programming language!
https://reddit.com/r/javascript/
r/vim
87k  subs
For Vim enthusiasts and anyone interested in Vim.
https://reddit.com/r/vim/
r/elixir
14k  subs
Elixir is a dynamic, functional language designed for building scalable and maintainable applications. Elixir leverages the Erlang VM, known for running low-latency, distributed and fault-tolerant systems, while also being successfully used in web development and the embedded software domain.
https://reddit.com/r/elixir/
r/golang
87k  subs
Gophers of the world unite!
https://reddit.com/r/golang/
r/PHP
106k  subs
Ask questions about frameworks, try your hand at php golf and strike gold or simply show off your latest work.
https://reddit.com/r/PHP/
r/webdev
376k  subs
A community dedicated to all things web development: both front-end and back-end. For more design-related questions, try /r/web_design.
https://reddit.com/r/webdev/
r/web_design
407k  subs
A community dedicated to all things web design. For more development-related questions, try /r/webdev.
https://reddit.com/r/web_design/
r/haskell
46k  subs
The Haskell programming language community. Daily news and info about all things Haskell related: practical stuff, theory, types, libraries, jobs, patches, releases, events and conferences and more...
https://reddit.com/r/haskell/
r/compsci
618k  subs
Computer Science Theory and Application. We share and discuss any content that computer scientists find interesting. People from all walks of life welcome, including hackers, hobbyists, professionals, and academics.
https://reddit.com/r/compsci/
r/Clojure
18k  subs
Clojure is a dynamic programming language / Lisp that targets the Java Virtual Machine.
https://reddit.com/r/Clojure/
r/linux
423k  subs
All things Linux and GNU/Linux -- this is neither a community exclusively about the kernel Linux, nor is exclusively about the GNU operating system.
https://reddit.com/r/linux/
r/java
146k  subs
News, Technical discussions, research papers and assorted things of interest related to the Java programming language NO programming help, NO learning Java related questions, NO installing Java questions, NO JVM languages!
https://reddit.com/r/java/
r/emacs
33k  subs
The extensible, customizable, self-documenting real-time display editor.
https://reddit.com/r/emacs/
r/netsec
327k  subs
A community for technical news and discussion of information security and closely related topics.
https://reddit.com/r/netsec/
r/rust
73k  subs
A place for all things related to the Rust programming language—an open-source systems language that emphasizes performance, reliability, and productivity.
https://reddit.com/r/rust/
r/startups
364k  subs
The place to discuss startup problems and solutions. Startups are companies that are designed to grow and scale rapidly. Join the /r/startups Discord: https://discord.gg/gRuh2pS
https://reddit.com/r/startups/
r/Python
419k  subs
news about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python
https://reddit.com/r/Python/
r/angularjs
54k  subs
A community for the awesome MVC JS framework.
https://reddit.com/r/angularjs/
A subreddit for all questions related to programming in any language.
https://reddit.com/r/learnprogramming/
r/reactjs
138k  subs
A community for learning and developing web applications using React by Facebook.
https://reddit.com/r/reactjs/
r/commandline
46k  subs
This is for anything regarding the command line, in any operating system. All questions (including dumb ones), tips, and interesting programs/console applications you've found or made yourself are welcome. Linux / BSD / OSX / Windows CLI apps or questions or comments, we're happy to take them all!
https://reddit.com/r/commandline/
r/docker
71k  subs
[Docker](http://www.docker.io) is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
https://reddit.com/r/docker/