What are some common misconceptions about the Singleton design pattern?
An example of an AI chatbot conversation about common misconceptions regarding the Singleton design pattern.
What are some common misconceptions about the Singleton design pattern?
One common misconception is that a Singleton is a global variable. While it provides a global access point, it is not the same.
Can you explain why it's not just a global variable?
Sure! A Singleton controls its instantiation and ensures that only one instance exists, while a global variable can be modified from anywhere.
Are there any performance issues associated with using Singletons?
Yes, if not implemented carefully, Singletons can lead to issues like resource contention and can complicate unit testing.
What are some alternatives to using a Singleton?
Alternatives include dependency injection, which allows for more flexible and testable code without the constraints of a Singleton.
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