Ruby For Beginners: Learn to Code with Ruby from Scratch

Download and install Ruby on Windows using the Ruby installer, selecting the latest stable version (2.5.3). Then verify the installation by opening a command prompt and typing ruby --version.

Install ruby on mac by downloading from ruby-lang.org, use rbenv with homebrew, update the bash profile, restart the terminal, and verify the installation with ruby --version showing 2.5.3.

Install the open source tennis studio editor on mac, create a ruby project, add hello.rb, and run it to print hello ruby with puts.

Discover how a programmer thinks by blending mathematics, engineering, and science to design and run a Ruby program that prints hello world using puts, print, and the P function.

Explore debugging in Ruby, identifying syntax errors and runtime errors (exceptions) through an interactive Ruby shell, with examples showing how the interpreter nudges for incorrect syntax and logical issues.

Learn what variables are in Ruby, how to assign values, and use them with print and basic arithmetic. Understand valid names, case sensitivity, and common syntax errors from keywords.

Explore Ruby data types, including strings, numbers, booleans, arrays, hashes, and symbols. Learn that everything is an object from a class; underscores aid readability.

Explains how Ruby assignment operators work, using shorthand forms like +=, -=, *=, /=, **, and % to modify variables in an interactive Ruby shell with simple examples.

Explore Ruby comparison operators: >, <, ==, !=, >=, <=, and the combined comparison that yields 0, 1, or -1, plus case equality and object id checks in IRB.

Learn how logical operators in Ruby evaluate truth: and requires both true, or requires one true, not negates. Try irb with A true and B false.

Explore Ruby string operations, including interpolation, length and size, indexing and slicing, split and chars, case conversions, and bang methods like chop, chomp, and gsub, include, index, start_with, and end_with.

Explore Ruby string methods by converting values with to_i and to_s, checking emptiness, formatting with center, ljust, and rjust, and handling encoding with force_encoding.

Explore Ruby case statements as a flexible alternative to if-else blocks, using when branches and ranges. Assign results with case and use one-liner syntax for concise checks.

Explore for loops and iterators in ruby, printing ranges like 1 to 5 and arrays, using blocks with curly braces or do end, and block variables.

Explore how methods organize Ruby programs into modular, reusable blocks, using built-in methods such as puts and print, and creating user defined methods with optional parentheses.

Explore recursive methods in Ruby, where a function calls itself until a base condition stops the recursion, demonstrated by summing numbers from a start to zero.

Demonstrate Ruby modules as containers for constants and methods, and show how to import them with require or relative paths, then call module methods such as square.