What are the differences between JavaScript classes and functions?

What are the main differences between JavaScript classes and functions?

JavaScript classes are syntactical sugar over JavaScript's existing prototype-based inheritance. Functions, on the other hand, are first-class objects that can be used to create objects and encapsulate behavior.

Can you explain how inheritance works in classes?

Sure! In JavaScript, classes can extend other classes using the extends keyword, allowing for inheritance. The child class inherits properties and methods from the parent class.

Are there any performance differences between using classes and functions?

Generally, there isn't a significant performance difference. However, classes can provide a clearer structure for complex applications, which can lead to better maintainability.

When should I use a class instead of a function?

Use classes when you need to create multiple instances with shared behavior or when you want to leverage inheritance. Functions are great for simpler, standalone operations.