Design Patterns: Singleton Pattern in TypeScript
Share a Single Global Instance Throughout Our Application
Welcome to the Design Patterns in TypeScript series, which introduces some useful design patterns in web development using TypeScript.
Design patterns are very important for web developers and we can write better code by mastering them. In this article, I will use TypeScript to introduce the Singleton Pattern.
The Singleton Pattern is a common pattern, and we often only need one of some objects, such as the global cache, the window object in the browser, etc. The singleton pattern is used to ensure that there is only one instance of a class and to provide a global access point to it.
In the picture above, I simulated the process of borrowing a car. Chris1993 had an emergency and asked me to borrow a car, so I lent my car to Chris1993. On the same day, Bytefish…