RubyCheatSheet

Ruby Cheat Sheet to not forget stupid things.

Strings

Arrays

Hashes

Methods

Objects / Classes

Modules

Variables (intance, class, arguments)

Enumerables

• Good Article

• Documentation

Accessors

Ranges?

Struct

Exceptions

Procs, Lambdas

Keyword arguments?

Introspection / Reflection

Serialization (JSON, Yaml, csv)

File management

Singleton

Performance?

Regex

Metaprogramming

Lazy enumerators

Ruby Object Hierarchy

Concurrency

• Good Article

• Useful methods:

  • Processes
  • Threads
  • EventMachine

Comparable module / Built-in global variable / web app without Rails / require-require_relative-load

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RailsCheatSheet

Rails Cheat Sheet to not forget other stupid things.

• ActiveRecord

  • Tricks

  • Documentation

• N+1 / Eager load

  • Good Article

  • Useful methods:

    • includes / references
    • eager_load
    • preload

• ActionCable

  • Good Article

  • Documentation

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Training

Links to do exercises and katas to improve skills

• Codewars
  • Fight your folks with kata points
• Hackerrank
  • Lots of exercises / math problems to resolve
• Codeschool
  • very nice interactive trainings
• Coursera
  • Get certified with university courses
• Rubyquiz
  • ?