What are some common misconceptions about type classes?
One common misconception is that type classes are the same as object-oriented interfaces, but they actually serve different purposes.
Can you explain how type classes differ from interfaces?
Sure! Type classes allow for ad-hoc polymorphism, meaning you can define functions that can operate on different types without needing a common ancestor.
Are type classes only used in functional programming?
Not at all! While they are prevalent in functional programming languages like Haskell, some object-oriented languages also implement similar concepts.
What about performance? Do type classes affect it?
Type classes can introduce some overhead, but many compilers optimize them well, so the performance impact is often minimal.
Can you give an example of a type class in Haskell?
Certainly! The Eq
type class in Haskell allows you to define equality for different types, enabling comparison operations.
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