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

Dec 25, 2024 · Ruby 3.4 adds it block parameter reference, changes Prism as default parser, adds Happy Eyeballs Version 2 support to socket library, improves YJIT, adds Modular GC, …

class Regexp A regular expression (also called a regexp) is a match pattern (also simply called a pattern). A common notation for a regexp uses enclosing slash characters: /foo/ A regexp may …

Mar 3, 2010 · Ruby Releases This page lists individual Ruby releases. For information about the current maintenance status of the various Ruby branches see the . Ruby releases by version …

Exceptions Ruby code can raise exceptions. Most often, a raised exception is meant to alert the running program that an unusual (i.e., exceptional) situation has arisen, and may need to be …

Formats for Dates and Times Several Ruby time-related classes have instance method strftime, which returns a formatted string representing all or part of a date or time: Date#strftime. …

class Hash: A \Hash object maps each of its unique keys to a specific value. An array index is always an integer.

pattern_matching: checking the structure and binding the matched parts to local variables. case <expression> in <pattern1> .

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 …

class Set: Copyright (c) 2002-2024 Akinori MUSHA <knu@iDaemons. org> Documentation by Akinori MUSHA and Gavin Sinclair.