ruby-data-types.md

Ruby 2.4 Data Types

• Types
  • NilClass
  • Numeric
    • Integer
      • Fixnum (deprecated in Ruby 2.4)
      • Bignum (deprecated in Ruby 2.4)
    • Float
    • Rational (the r suffix was added in Ruby 2.1)
    • Complex (the i suffix was added in Ruby 2.1)
  • String
  • Regexp (? not sure)
  • Symbol
  • Range
  • Array
  • Hash

Class Hierarchy

• BasicObject
  • Object
    • NilClass
    • TrueClass
    • FalseClass
    • Numeric
      • Integer
        • Fixnum (deprecated in Ruby 2.4)
        • Bignum (deprecated in Ruby 2.4)
      • Float
      • Rational (the r suffix was added in Ruby 2.1)
      • Complex (the i suffix was added in Ruby 2.1)
    • String
    • Regexp
    • Symbol
    • Range
    • Array
    • Hash

Note: Since Ruby 2.1.0, Rational literals are available, like these: 0r, 2r/3, 2/3r.

Note: Since Ruby 2.1.0, Complex literals are available, like these: 0i, 1+0i, 1+1i.

Note: Since Ruby 2.4.0, Fixnum and Bignum are unified into Integer.

Note: It seems that there does not exist an official Ruby Language Specification. Therefore, the above information was gathered from various sources, including:

• Ruby Programming - Wikibooks

• Ruby Programming/Data types - Wikibooks

• Running the following commands:

  git clone https://github.com/ruby/ruby
  cd ruby
  ruby sample/exyacc.rb < parse.y