Ruby Reference

Ruby language patterns and idioms. From basics through metaprogramming.

Topics

Topic	Description
Basics	Variables, types, control flow, methods, I/O
Blocks, Procs & Lambdas	Blocks, yield, Proc.new, stabby lambdas, closures
Classes	Class definition, inheritance, access control, Struct, Data
Modules	Namespaces, mixins, include, extend, prepend, Enumerable
Gems	gem, Bundler, Gemfile, version constraints, infrastructure gems
Strings	Interpolation, methods, split/join, regex, encoding
Collections	Arrays, hashes, ranges, Enumerable methods
File I/O	Reading, writing, directories, CSV, JSON, Open3

Topic

Description

Variables, types, control flow, methods, I/O

Blocks, yield, Proc.new, stabby lambdas, closures

Class definition, inheritance, access control, Struct, Data

Namespaces, mixins, include, extend, prepend, Enumerable

gem, Bundler, Gemfile, version constraints, infrastructure gems