Explore common pitfalls of the Singleton pattern in JavaScript, including global state issues, testing challenges, and concurrency concerns, along with practical solutions such as dependency injection and mocking.
Explore best practices for using dialogs in JavaScript, including when to use alerts, prompts, and confirms, and alternatives for better user experience.
Explore the principles of writing side-effect-free code in JavaScript, focusing on pure functions and immutability. Learn how these practices enhance code reliability, maintainability, and testability.