define_attribute_methods in Rails: Complete Guide to Dynamic Attribute Methods
A comprehensive guide to define_attribute_methods in Rails - generating attribute accessors, mutators, and query methods dynamically for ActiveRecord models.
Ruby
Shopping Cart Goods Count Update in Rails(class variable)
Shopping Cart Goods Count Update in Rails(class variable)
Rails mattr_accessor่ฏฆ่งฃ
Rails mattr_accessor่ฏฆ่งฃ
Class Variables vs Class Instance Variables in Ruby
Understand the difference between class variables (@@var) and class instance variables (@var) in Ruby โ how they behave with inheritance and when to use each.
Comparison of Object-Oriented Features in Golang and Ruby
Comparison of object-oriented features in Golang and Ruby
Autoload in Rails: Complete Guide to Constant Autoloading
Understanding autoload in Rails - how Rails automatically loads constants and modules based on directory structure and naming conventions. Covers classic autoloader and Zeitwerk.
instance_eval, instance_exec, class_eval, and module_eval in Ruby
A complete guide to Ruby's context-switching methods โ instance_eval, instance_exec, class_eval, and module_exec โ with practical use cases and security considerations.
alias and alias_method in Ruby
Learn how to use alias and alias_method in Ruby โ renaming methods, wrapping behavior, and the key differences between the two.
alias and alias_method in Ruby: Complete Guide
A comprehensive guide to using alias and alias_method in Ruby for method aliasing, metaprogramming, code reuse, and Rails patterns.
class variable and class instance variable and class_attribute in Ruby
class variable and class instance variable and class_attribute in Ruby
Content Class Methods
Content Class Methods
Thinking About ActiveRecord::Concern
Thinking About ActiveRecord::Concern
Constants and Namespaces in Ruby
A complete guide to Ruby constants โ how constant lookup works, namespacing, the :: operator, and common pitfalls with nested classes.
Hash vs Struct in Ruby: When to Use Each
A complete guide to Ruby's Hash and Struct โ their differences, use cases, and when Struct is the better choice for structured data.
AOP Programming in Ruby
Understanding Aspect-Oriented Programming (AOP) in Ruby - patterns, implementation, and use cases for separating cross-cutting concerns.
Ruby prepend vs include: Module Composition Guide
Learn how Ruby's prepend works, how it differs from include, and when to use each for module composition and method wrapping.
Essential Ruby Articles and Learning Resources
A curated collection of essential Ruby articles covering modules, metaprogramming, equality operators, and the Ruby object model.
Singleton Methods and the Singleton Class in Ruby
A complete guide to Ruby's singleton methods and singleton class โ what they are, how they work, and how they underpin class methods and Ruby's object model.
Dynamic Dispatch in Ruby: send, public_send, and Method Objects
A complete guide to Ruby's dynamic dispatch โ using send, public_send, and method objects to call methods dynamically, bypass visibility, and build flexible APIs.
attr_accessor, attr_reader, and attr_writer in Ruby
A complete guide to Ruby's attribute accessors โ attr_accessor, attr_reader, and attr_writer โ with examples, custom implementations, and best practices.
Using Class Variables for Counters and Shared State in Ruby
Practical patterns for using Ruby class variables as counters โ with thread safety, inheritance considerations, and better alternatives.
method_missing in Ruby: Ghost Methods and Dynamic Dispatch
A complete guide to Ruby's method_missing โ how it works, practical use cases, and how to implement it safely with respond_to_missing?.
Class Instance Variables in Ruby: Inheritance, Accessors, and Rails class_attribute
A deep dive into Ruby class instance variables โ how they differ from class variables, how inheritance works, and how Rails class_attribute builds on them.
Class Variables in Ruby: @@var Explained
A complete guide to Ruby class variables (@@var) โ how they work, how they behave with inheritance, thread safety concerns, and why class instance variables are usually preferred.
Ruby Class Extension Pattern: Adding Class Methods via Modules
Learn the Ruby class extension pattern โ using self.included and extend(ClassMethods) to add both instance and class methods when a module is included.
Ruby Argsๅๆฐๅค็
Ruby็ๅๆฐๅค็
Class Methods and Singleton Methods in Ruby
A complete guide to Ruby class methods โ the three ways to define them, singleton methods, inheritance, and practical patterns.
Implementing a blank? Helper in Ruby
Learn how to implement and use a blank? helper in Ruby โ handling nil, empty strings, whitespace, and falsy values cleanly.
Understanding class_eval, module_eval and instance_eval
Understanding class_eval, module_eval and instance_eval
Interface Inheritance vs Implementation Inheritance in Ruby and Go
Understand the difference between interface inheritance and implementation inheritance, with practical examples in Ruby and Go.
attr_checkedๅฝๆฐๅจใrubyๅ ็ผ็จใไธญ็ๅฎ็ฐ
attr_checkedๅฝๆฐๅจใrubyๅ ็ผ็จใไธญ็ๅฎ็ฐ
Dynamic Languages and Runtime Errors: Ruby's Late Binding Risks
Understand the risks of Ruby's dynamic nature โ methods that fail only at runtime, how to mitigate them with tests and static analysis, and what this means for production code.
Debugging Capistrano Deploy Failures: Lessons in Dependency Management
A real-world debugging story: fixing a Capistrano deploy failure caused by a gem major version bump, with lessons on dependency management and semantic versioning.
Ruby: Strengths, Weaknesses, and When to Use It
An honest assessment of Ruby as a programming language โ its strengths in expressiveness and developer happiness, its performance trade-offs, and where it fits in 2026.
Testing Tools in Ruby
Rubyๆต่ฏๅทฅๅ ท Testing Tools in Ruby
ActiveRecord::Relation vs ActiveRecord Objects in Rails
Understand the difference between ActiveRecord::Relation and model objects in Rails โ lazy loading, query chaining, and when to use find vs where.
Equality and Comparison in Ruby: ==, eql?, equal?, <=>, and ===
A complete guide to Ruby's equality and comparison operators โ ==, eql?, equal?, <=>, and === โ what each means and when to use each.
Object-Oriented Programming in Ruby: Objects, Classes, and the Object Model
A deep dive into Ruby's object model โ how objects, classes, modules, and the method lookup chain work, with comparisons to Python and Go.
How to Create a Gem For JavaScript and CSS Libraries
How to Create a Gem For JavaScript and CSS Libraries
็ปๆฐๆฎ่กจ่ฎพ็ฝฎ้ป่ฎคๅผๆฅ้ฒๆญข็ฉบๆ้ๅผ่ตท็ๅผๅธธ
็ปๆฐๆฎ่กจ่ฎพ็ฝฎ้ป่ฎคๅผๆฅ้ฒๆญข็ฉบๆ้ๅผ่ตท็ๅผๅธธ
Loops and Iteration in Ruby: A Complete Guide
A complete guide to loops and iteration in Ruby โ times, upto, each, while, until, loop, map, select, and when to use each.
public, private, and protected Methods in Ruby
A complete guide to Ruby's method visibility: public, private, and protected โ what they mean, how they work, and when to use each.
Understanding self in Ruby
A complete guide to understanding self in Ruby โ what it refers to in different contexts, how it works in classes, modules, and singleton methods.
include and extend in Ruby
include and extend in Ruby
Instance Methods in Ruby: Definition, Binding, and Singleton Methods
A complete guide to Ruby instance methods โ the three ways to define them, singleton methods, unbound methods, and dynamic method definition.
include vs extend in Ruby: Adding Methods to Classes and Objects
A complete guide to Ruby's include and extend โ how they differ, when to use each, and the classic pattern for adding both instance and class methods via a module.
Sessions in Rails: How They Work and Best Practices
A complete guide to sessions in Rails โ how they work, storage options, security considerations, and best practices for authentication.