krmannix/elixir-fun-with-programming

elixir fun with programming #1

elixir-fun-with-programming

elixir fun with programming #1

Presentation for Fun with Programming series @ Freebird

Why Elixir?

• Functional language with a syntax similar to Ruby
• Dynamically typed
• Highly concurrent due to the process model - all code is executed in small, lightweight processes that are garbage collected independently. These do not share state other than through persisted data stores
• Runs on the Erlang BEAM VM, known for low-latency and reliability
  1. Hot code reloading
  2. Distributed - asynchronous message passing does not need to happen on the same machine, can be passed to any receiver on the same network (Actor model)
  3. Fault-tolerant - graceful error handling through supervisor model

Features

• Pattern matching
• Ships with tools like mix and IEx
• Access to Erlang's ecosystem

Misc

• Hex documentation / package manager
• Phoenix framework

Pattern Matching examples

• Factorial
  • Topics:
    • Pattern matching with recursion
• Exponentiation by Squaring
  • Implemented by the math library
  • Topics:
    • Optional arguments with defaults
    • Unused values
    • Guard classes (rem, <, >)
• Math Abstract Syntax Tree
  • Topics:
    • Map Pattern Matching
    • Enum library
    • cond case