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#0
Learn Ruby - Pre-Requisite Skills & Setup Environment
Before touching Ruby, you need to master the basics of programming, terminal, editor, and Git. In this episode you also set up Ruby 4.0.x through rbenv, verify IRB and RubyGems, and install Bundler for dependency management.
August 10, 2026
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#1
Learn Ruby - History, Background & Why Ruby
This episode dissects the origins of Ruby: its birth by Yukihiro Matsumoto in 1993, the public release in 1995, its popularity through Ruby on Rails, and Ruby 4.0, which arrived on 25 December 2025 with ZJIT and Ruby::Box, plus the problems this language solves.
August 10, 2026
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#2
Learn Ruby - Core Concepts & Main Architecture
This episode dissects the CRuby architecture: the flow from source code to the Prism parser, bytecode, the YARV VM, the role of Garbage Collection and GVL, two JITs (YJIT and ZJIT), the everything is object model, and Ruby distributions like CRuby, JRuby, and TruffleRuby.
August 10, 2026
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#3
Learn Ruby - Basic Syntax & Data Types
This episode covers Ruby's basic syntax: variables and constants with their naming rules, the Integer, Float, String, Symbol, Array, Hash, and Range data types, comments, output with p and puts, string interpolation, and the difference between symbols and strings.
August 10, 2026
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#4
Learn Ruby - Control Flow & Operators
This episode covers program control flow in Ruby: if, unless, ternary, and case branching with in pattern matching, while, until, loop loops, the each, times, and upto iterators, break, next, and redo control, plus short-circuit and spaceship operators.
August 10, 2026
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#5
Learn Ruby - Methods, Blocks, Proc & Lambda
This episode dissects Ruby methods: positional parameters, default values, keyword arguments, splats, and implicit return, then blocks, Proc, and Lambda with their differences, the it and _1 block parameters, and the map, select, and reduce Enumerable methods with chaining.
August 10, 2026
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#6
Learn Ruby - OOP: Class, Object & Module
This episode dissects Ruby's Object-Oriented Programming: class, initialize, instance methods and class methods, attr_accessor, inheritance, modules with include, extend, and prepend, the Comparable and Enumerable modules, and method visibility.
August 10, 2026
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#7
Learn Ruby - Error Handling, Debugging & Warnings
This episode dissects error handling in Ruby: begin, rescue, ensure, and raise, the StandardError and ArgumentError exception classes, custom exceptions, debugging with binding.irb and the debug gem, reading backtraces, and running code with ruby -w.
August 10, 2026
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#8
Learn Ruby - String, Symbol & Regular Expression
This episode dissects text processing in Ruby: string encoding and transcoding, frozen string literals, common methods like split, gsub, tr, and upcase, plus Regexp with capture groups, the =~ operator, the match and scan methods, and the i, m, x flags.
August 10, 2026
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#9
Learn Ruby - File I/O & Data Formats
This episode dissects interactions with the filesystem and data formats: File.read, File.write, File.open with a block, streaming large files, the Pathname class which has been a core class since Ruby 4.0, and JSON, YAML, CSV, and Marshal serialization.
August 10, 2026
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