Programming Ruby 3.3: The Pragmatic Programmers' Guide (Pragmatic Programmers; Facets of Ruby

A comprehensive reference for the Ruby programming language, specifically covering versions up to 3.2. It introduces fundamental concepts like object-oriented programming, data structures such as arrays and hashes, and control flow mechanisms including loops, conditionals, and pattern matching. The guide also explores more advanced topics like exceptions, input/output operations, concurrency with threads, fibers, and Ractors, and metaprogramming techniques. Furthermore, it discusses development practices like testing with Minitest and RSpec, packaging code with RubyGems and Bundler, and interactive debugging using irb.

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