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Showing content from https://docs.ruby-lang.org/en/master below:

Documentation for Ruby 3.5

Welcome to the official Ruby programming language documentation.

New to Ruby? Start with our Getting Started Guide.

Explore the essential classes and modules:

• String - Text manipulation and string utilities.

• Symbol - Named identifiers inside the Ruby interpreter.

• Array - Ordered collections of objects.

• Hash - Key-value pairs for efficient data retrieval.

• Integer - Integer number class.

• Float - Floating-point number class.

• Enumerable - Collection traversal and searching.

• File - File operations and handling.

• IO - Input/output functionality.

• Time - Time representation.

• Regexp - Regular expressions for pattern matching.

• Range - Representing a range of values.

• Exception - Base class for all exceptions.

• Thread - Multithreading and concurrency.

Deep dive into Ruby’s syntax and features:

• Ruby Syntax

• Exceptions

• Implicit Conversions

There are some standard libraries included in Ruby that are also commonly used, such as:

• Date - Date representation.

• JSON - JSON encoding and decoding.

• ERB - Embedded Ruby for templating.

• Net::HTTP - HTTP client library.

Use the following links to access the comprehensive set of libraries included with Ruby:

• Standard Library Documentation

• Maintainers

Get involved with the Ruby community:

• Contribution Guide

• Documentation Guide

• Reporting Issues

• Building Ruby

• Testing Ruby

• Issue Tracker

• Ruby Homepage

• RubyGems

• Ruby Community

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