* Ruby オフィシャルサイト [[url:https://www.ruby-lang.org/ja/]] * version 3.1 対応リファレンス * 原著：まつもとゆきひろ * 最新版URL: [[url:https://www.ruby-lang.org/ja/documentation/]]| docs.ruby-lang.org
Struct.new returns a new subclass of Struct. The new subclass:| docs.ruby-lang.org
module URI: www. rfc-editor.| docs.ruby-lang.org
Encodings¶ ↑| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
APPEND| docs.ruby-lang.org
class Symbol: A +Symbol+ object represents a named identifier inside the Ruby interpreter. literals.| docs.ruby-lang.org
class StringIO: IO].| docs.ruby-lang.org
class String: A +String+ object has an arbitrary sequence of bytes, typically representing text or binary data. new or as literals.| docs.ruby-lang.org
class Regexp: en. wikipedia.| docs.ruby-lang.org
class Rational: b (b>0), where a is the numerator and b is the denominator. mathematically.| docs.ruby-lang.org
class Proc: A +Proc+ object is an encapsulation of a block of code, which can be stored in a local variable, passed to a method or another Proc, and can be called| docs.ruby-lang.org
class Object: Object is the default root of all Ruby objects. Object inherits from BasicObject which allows creating alternate object hierarchies.| docs.ruby-lang.org
class Numeric: Numeric is the class from which all higher-level numeric classes should inherit. Numeric allows instantiation of heap-allocated objects.| docs.ruby-lang.org
class Hash: A +Hash+ maps each of its unique keys to a specific value. An Array index is always an Integer.| docs.ruby-lang.org
class Float: A \Float object represents a sometimes-inexact real number using the native architecture's double-precision floating point representation. Floating po| docs.ruby-lang.org
class Complex: i>. en.| docs.ruby-lang.org
comments: inline and block. code>.| docs.ruby-lang.org
class Thread: Threads are the Ruby implementation for a concurrent programming model. Programs that require multiple threads of execution are a perfect candidate fo| docs.ruby-lang.org
module Kernel: The Kernel module is included by class Object, so its methods are available in every Ruby object. The Kernel instance methods are documented in class| docs.ruby-lang.org
Constants| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Regular expressions (regexps) are patterns which describe the contents of a string. They’re used for testing whether a string contains a given pattern, or extracting the portions that match. They are created with the /pat/ and %r{pat} literals or the Regexp.new constructor.| docs.ruby-lang.org
A Range object represents a collection of values that are between given begin and end values.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
ractor: Ractor - Ruby's Actor-like concurrent abstraction Ractor is designed to provide a parallel execution feature of Ruby without thread-safety concerns.| docs.ruby-lang.org
class Ractor: Ractor is an Actor-model abstraction for Ruby that provides thread-safe parallel execution. Ractor.| docs.ruby-lang.org
Regular expressions (regexps) are patterns which describe the contents of a string. They’re used for testing whether a string contains a given pattern, or extracting the portions that match. They are created with the /pat/ and %r{pat} literals or the Regexp.new constructor.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
JavaScript Object Notation (JSON)¶ ↑| docs.ruby-lang.org
CSV¶ ↑| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
A class which allows both internal and external iteration.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
BigDecimal provides arbitrary-precision floating point decimal arithmetic.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
class Module: A Module is a collection of methods and constants. The methods in a module may be instance methods or module methods.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
A Hash maps each of its unique keys to a specific value.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Raised when the arguments are wrong and there isn’t a more specific Exception class.| docs.ruby-lang.org
An instance of class IO (commonly called a stream) represents an input/output stream in the underlying operating system. Class IO is the basis for input and output in Ruby.| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
Public Class Methods| docs.ruby-lang.org
Public Instance Methods| docs.ruby-lang.org
A String object has an arbitrary sequence of bytes, typically representing text or binary data. A String object may be created using String::new or as literals.| docs.ruby-lang.org
A File object is a representation of a file in the underlying platform.| docs.ruby-lang.org
Literals¶ ↑| docs.ruby-lang.org
Constructors for classes defined with ::define accept both positional and keyword arguments.| docs.ruby-lang.org
class Fiber: Fibers are primitives for implementing light weight cooperative concurrency in Ruby. Basically they are a means of creating code blocks that can be pa| docs.ruby-lang.org
class ERB: ERB -- Ruby Templating == Introduction ERB provides an easy to use but powerful templating system for Ruby. ERB.| docs.ruby-lang.org
module Kernel: The Kernel module is included by class Object, so its methods are available in every Ruby object. The Kernel instance methods are documented in class| docs.ruby-lang.org
module Coverage: Coverage provides coverage measurement feature for Ruby. This feature is experimental, so these APIs may be changed in future.| docs.ruby-lang.org
What’s Here¶ ↑| docs.ruby-lang.org
An Array is an ordered, integer-indexed collection of objects, called elements. Any object (even another array) may be an array element, and an array can contain objects of different types.| docs.ruby-lang.org