How is the Strategy pattern different from the State pattern?
The Strategy pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable and the State pattern allows an object to alter its behavior when its internal state changes.
Top 30 JavaScript Design Patterns Interview Questions
The Design Patterns are basically defined as the reusable and generalized solutions to the common problems that arise during software design and development. Design patterns are not specific to any particular programming language or technology instead, they provide abstract templates or blueprints for solving recurring design-related problems. They help software developers create well-structured, maintainable, and flexible code by promoting best practices and proven solutions.
JavaScript Design Patterns Interview Questions
- 1. What is Design Pattern in JavaScript?
- 2. Types of Design Pattern in JavaScript?
- 3. What are the Main advantages of using design pattern in JavaScript?
- 4. How does the Module design pattern work in JavaScript?
- 5. What is the Observer pattern?
- 6. Explain the Singleton design pattern in JavaScript.
- 7. How does the Strategy pattern work in JavaScript?
- 8. Explain the Factory Design Pattern.
- 9. How does the Prototype pattern work?
- 10. What is the Decorator pattern in JavaScript?
- 11. What is Known as Gang of Four?
- 12. Define the MVC (Model-View-Controller) pattern in JavaScript.
- 13. Which is the most common used design pattern in javascript?
- 14. What do you understand by Dependency Injection pattern and how do you implemented it in JavaScript?
- 15. Explain the Publish-Subscribe pattern and provide an example in JavaScript.
- 16. How is the Strategy pattern different from the State pattern?
- 17. Explain the Proxy pattern in JavaScript.
- 18. How does the Template Method pattern work?
- 19. Explain the Chain of Responsibility pattern and provide an example in JavaScrip.
- 20. How is the Factory pattern different from the Abstract Factory pattern?
- 21. Describe the Proxy pattern and provide a real-world example in JavaScript
- 22. Explain the Command pattern and provide a use case in JavaScript
- 23. Describe the Memento pattern with example
- 24. What is the Revealing Module pattern?
- 25. How does the State Pattern work, and when it is used in JavaScript?
- 26. Explain the Flux architecture and how it utilizes the Observer Pattern
- 27. How does Module Pattern differ from the Revealing Module Pattern?
- 28. Differentiate between the Factory and Abstract Factory Patterns
- 29. Explain the Flux Pattern and its relationship with React
- 30. Example of Revealing Module pattern in JavaScript