Ruby Documentation Welcome to the official Ruby programming language documentation. Getting Started New to Ruby? Start with our Getting Started Guide. Core Classes and Modules Explore the …

Ruby Documentation Welcome to the official Ruby programming language documentation. Getting Started New to Ruby? Start with our Getting Started Guide. Core Classes and Modules Explore the …

Identical regexp can or cannot run in linear time depending on your ruby binary. Neither forward nor backward compatibility is guaranteed about the return value of this method.

Jul 15, 2025 · We intend to release the latest stable Ruby version (currently Ruby 3.4) every two months following the most recent release. Ruby 3.4.6 is scheduled for September, 3.4.7 for November, and …

Ruby is a simple and powerful object-oriented programming language, created by Yukihiro Matsumoto (who goes by the handle “Matz” in this document and on the mailing lists).

person = {name: 'Matz', language: 'Ruby'} person # => {name: "Matz", language: "Ruby"} You can use a hash to give names to method arguments:

books [: matz] = "The Ruby Language" books [: black] = "The Well-Grounded Rubyist" Hashes are also commonly used as a way to have named parameters in functions.

Ruby’s grammar differentiates between statements and expressions. All expressions are statements (an expression is a type of statement), but not all statements are expressions.

In the simplest case, the dumped string contains the original string, enclosed in double-quotes; this example is done in irb (interactive Ruby), which uses method ‘inspect` to render the results:

To enable this feature, configure Ruby with --with-modular-gc at build time. GC libraries can be loaded at runtime using the environment variable RUBY_GC_LIBRARY.