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Top 5 Design Patterns We Really Use in JavaScript | Advanced JS/TS
In the world of software development, design patterns are like the best practices we always reach for when solving common problems.
They provide proven solutions and can make our code more maintainable, scalable, and understandable.
JavaScript, being one of the most versatile languages, offers a plethora of design patterns to choose from. However, today I want to focus on the top 5 design patterns that are most useful and popular in our day-to-day routine.
💡 Code examples can be found here 👉 https://gist.github.com/BiosBoy/445430f8b1096dc49f4f06a5e0204add
Let’s dive into each one, understand how they work, and why they are essential to JavaScript development.
1. Singleton Pattern 👀
The Singleton pattern ensures that a class has only one instance and provides a global point of access to it. This is incredibly useful when exactly one object is needed to coordinate actions across the system.
Example:
Why it’s essential:
The Singleton pattern is crucial in scenarios where you need to manage global state, such as managing configurations, logging, or caching.
2. Observer Pattern 🐇
The Observer pattern allows an object (subject) to maintain a list of its dependents (observers) and notify them of any state changes. This is especially useful for implementing distributed event handling systems.
Example:
Why it’s essential:
The Observer pattern is vital for building scalable and modular applications, especially when dealing with user interfaces and real-time systems.
