Understanding the Singleton Pattern in Javascript javascript

Understanding the Singleton Pattern in Javascript

The Singleton pattern in JavaScript ensures one shared instance with a global access point. A practical implementation using an object literal and Object.freeze, a shared bucket example, and where a singleton fits: configuration, logging, or a central data store.

Oct 2, 2023

Understanding the Singleton Pattern in Ruby ruby

Understanding the Singleton Pattern in Ruby

The Singleton pattern in Ruby, shown two ways: a hand-rolled class using private_class_method :new with a self.instance accessor, then a cleaner refactor with the built-in Singleton module. What the pattern guarantees and when one shared instance is worth it.

Sep 25, 2023