How to find each instance of a class in Ruby
121064
How to get class instances in Ruby?
93047
How to check whether a variable is a class or not?
53337
How do you find all subclasses of a given class in Java?
131321
What is the correct way to write a singleton pattern in Ruby?
30850
How to get a complete list of object's methods and attributes?
57438
Python: Reference to a class from a string?
78681
How to print instances of a class using print()?
120716
Avoiding 'instanceof' in Java
51510
Is the .each iterator in ruby guaranteed to give the same order on the same elements every time?
27022
The difference between Classes, Objects, and Instances
34819
What is the difference between an Instance and an Object?
118002
What exactly is the singleton class in ruby?
21725
How to loop through all the properties of a class?
47448
How to find the unique elements in an array in Ruby
146996
Get all instances of a class in PHP
17633
class << self vs self.method with Ruby: what's better?
82297
How to read class attributes in the same order as declared?