Singleton pattern - Wikipedia
In software engineering, the singleton pattern is a software design pattern that restricts the instantiation of a class to one "single" instance. This is useful when exactly one object is needed to coordinate actions across the system. The term comes from the mathematical concept of a singleton.
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Одиночка. Также известен как: Singleton.
Singleton Design Pattern | Implementation - GeeksforGeeks
Singleton Design Pattern | Introduction The singleton pattern is one of the simplest design patterns. Sometimes we need to have only one instance of our class for example a single DB connection...
What Is a Singleton?. Introduction to the singleton design | Medium
The singleton design pattern restricts the instantiation of a class to a single instance. This is done in order to provide coordinated access to a certain resource, throughout an entire software…