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Ruby5 #558

https://ruby5.codeschool.com/episodes/600-episode-558-june-12th-2015

  • Regular Extremism
    • advanced regular expression features
  • Environment Variables
    • Every process has its own set of environment variables
    • A process gets its environment variables from its parent
    • Children can’t set their parents’ environment variables
  • Functional Programming in Ruby
    • Monoids, Homomorphism, Functors, Monads
  • Hash Default Values
    • Hash.new { |hash, key| hash[key] = fizz_and_or_bang(key) }
  • Ruby Queries into SQL Statements
  • Dependency Injection
    • some techniques used to help dry up code when using dependency injection
    • Using default arguments
      • def initialize(input:, parser: Parser.new, gateway: Gateway.new)

Stereolab - Miss Modular

by SoundHound