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Elixir provides the joy and productivity of Ruby with the concurrency and fault-tolerance of Erlang. Together, we'll take a guided tour through the language, going from the very basics to macros and distributed programming. Along the way, we'll see how Elixir embraces concurrency and how we can construct self-healing programs that restart automatically on failure. Attendees should leave with a great head-start into Elixir, some minor language envy, and a strong desire to continue exploration. Help us caption & translate this video! http://amara.org/v/FGZr/
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In the workshop titled "All Aboard The Elixir Express!" presented by Chris McCord at RailsConf 2014, attendees are introduced to the essentials of the Elixir programming language. Emphasizing Elixir's advantages, McCord compares it to Erlang, highlighting its concurrency and fault-tolerance features. The workshop is structured as a guided tour through Elixir, starting with the fundamental concepts and gradually moving to more advanced topics, including: - **Erlang's Background**: McCord explains Erlang's development for telecom systems, focusing on its design for distributed, concurrent, and fault-tolerant systems. - **Elixir’s Relationship to Erlang**: Elixir is introduced as a modern language that runs on the Erlang VM, incorporating Erlang's strengths while adding features like metaprogramming, ease of use, and rapid deployment, contrasting its syntax with Ruby. - **Language Features**: Key features of Elixir are introduced, including immutability, the actor model of concurrency, and pattern matching. There is discussion on constructs such as tuples, lists, and terms. - **Concurrency Model**: McCord discusses how Elixir’s approach to concurrency is superior to that of Ruby. He explains how Elixir processes are lightweight and how message passing effectively eliminates shared mutable state, allowing developers to write safer concurrent applications. - **Process Management and Supervision**: The concept of processes in Elixir is explored in detail, including how they can be supervised to handle failures gracefully. McCord demonstrates how to send messages between processes and manage state effectively. - **Use Cases and Real-World Applications**: Throughout the presentation, McCord illustrates the practical implications of using Elixir over Ruby for certain applications, particularly those that require high concurrency and fault tolerance. He shares his experiences with Elixir while discussing a Twitter aggregator project that demonstrates these concepts. The workshop concludes with a discussion of the advantages of adopting Elixir for future programming endeavors, particularly for those familiar with Rails and looking to explore concurrent and highly reliable software development.
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