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The Handbook for Ruby Developers

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First Steps

Runtime Environments Writing Our First Program REPL Exercise: First steps Quiz: First Steps

Fundamentals of Ruby

Variables in Ruby String Addition and Multiplication Data Types in Ruby Everything Is An Object in Ruby (Proof)Type Casting (Type Conversion)Fractional Numbers String Interpolation in Ruby Bang!Blocks in Ruby Blocks with Parameters Methods of Ruby’s Integer Class Exercise 1: Fundamentals of Ruby Quiz: Fundamentals of Ruby

Conditional Statements

Testing Variables and Branching Combining Conditions Some Useful Ruby Methods Random Numbers Exercise: Conditional Statements Quiz: Conditional Statements

Operators and Methods

Ternary Operator Loading Indicator Methods Judgment Day Emulator Instance and Local Variables Programming a Slot Machine Quiz: Operators and Methods

Arrays

Introduction to arrays Initializing Arrays Accessing Arrays Battle of the Robots Arrays of Arrays: Two-dimensional arrays Arrays of Arrays: Referencing Accessing Arrays of Arrays Multidimensional Arrays Gems Closer Look into Arrays Elements in Arrays Symbols Exercise: Arrays Quiz: Arrays

Hash

Hash Hash in Ruby Other Types as Hash Values JSON-structure of a real-world application English-Spanish dictionary Comparison of Hashes and Arrays Methods of Hash Class Setting a Default Value in Hash Passing Parameters to Methods HashSets Iteration over Hash Elements The “dig” method Exercise: Hash Quiz: Hashes

Fun with Object Oriented Programming

Objects and State Scope of Variables Significance of State Example of State Duck Typing and Polymorphism Inheritance Modules Subtyping vs Inheritance Class methods The truth about Object-oriented Programming Exercise: Game of Robots Quiz: Object-oriented Programming

Debugging in Ruby

Debugging in Ruby Debugging Using the Output to the Console Debugging Using a Console Debugger Quiz: Debugging the Program

Ruby Version Manager

Introduction to the Version Management Semantic Versioning Multiple Ruby Versions Quiz: Ruby Version Manager

Testing Ruby Programs

Introduction to Software Testing Rspec Testing Framework A TestCase Scenario

Appendix

Setting Up Environments Debugging with IDE

Conclusion

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Final Remarks

Final Remarks

Here's a quick summary of the “The Handbook for Ruby Developers” module.

Congratulations! We successfully completed the “The Handbook for Ruby Developers” module.

Summary

We’ve covered only some aspects of software ...