Is there a simple, elegant way to define singletons?
141136
Creating a singleton in Python
13705
What techniques can be used to define a class in JavaScript, and what are their trade-offs?
75269
Is it possible to define a Ruby singleton method using a block?
61662
PHP OOP: Chainable objects?
71353
What is the best way to implement constants in Java?
52101
Chaining Static Methods in PHP?
60648
Is Meyers' implementation of the Singleton pattern thread safe?
73158
How to make a real private instance variable?
40308
Is it possible to initialize a Singleton from a specific method and not when application is executed?
56172
C++ Singleton design pattern
129207
What is so bad about singletons?
44606
How to properly implement ARC compatible and `alloc init` safe Singleton class?
42625
SFDC: Understanding With Sharing, Without Sharing & Unspecified Sharing Classes
60540
Should I instantiate instance variables on declaration or in the constructor?
138824
Is there a use-case for singletons with database access in PHP?
9078
Difference between static class and singleton pattern?
154021
prototype: deep scope of "this" to access instance's scope