Evaluate the size in bytes of something in C++...

Why isn't the eigenclass equivalent to self.class, when it looks so similar?...

Why a module's singleton method is not visible in downstream eigenclasses where it gets mixed?...

What is a singleton class in Ruby?...

class << self idiom in Ruby...

How does Inheritance work in Ruby?...

Why am I able to use Kernel singleton methods like `puts`?...

Class, Module, their eigenclasses, and method lookup...

How to create a method that executes a previously given block in Ruby?...

Can a Ruby object have multiple eigenclasses?...

How to make a module constant also visible within an eigenclass?...

Ruby Class Methods vs. Methods in Eigenclasses...

Add methods from modules to specific instances of a class dynamically...

How to find private singleton methods...

RSpec unit testing an eigenclass: undefined method...

Ruby - Share local variable with the obj's eigenclass...

Initializing class instance variables of subclasses from the superclass...

Why is `class << self` more common than `class << Foo` for opening a class object's ...

Ruby eigenclass (sigleton class) created? For which?...

Ruby eigenclass unexpected behaviour...

Setting instance defaults in the eigenclass of ruby classes...

Determine Class from Eigenclass...

Knowing if a class is an eigenclass...

define_method and the object Class: strange behavior...

Ruby class << Klass = Module::new...

Add class methods through include...

Ruby - Is there a way to get the instance of an eigenclass?...

How to obtain the object corresponding to a given singleton (or eigen) class in Ruby?...

Implicit context and eigenclasses...

ActiveSupport::Callbacks on class methods...