What are some super functions in different programming languages?

What are some super functions in different programming languages?

Super functions, or higher-order functions, are functions that can take other functions as arguments or return them. In languages like JavaScript, you have functions like map, filter, and reduce. In Python, you can use map, filter, and functools.reduce.

Can you give me an example of a super function in JavaScript?

Sure! The map function in JavaScript is a great example. It takes a function as an argument and applies it to each element in an array, returning a new array. For instance: const doubled = arr.map(x => x * 2);.

What about in Python?

In Python, you can use the map function similarly. For example: doubled = list(map(lambda x: x * 2, arr)) will double each element in the list arr.

Are there super functions in Java?

Yes! In Java, you can use functional interfaces like Function<T, R> and methods like Stream.map() to achieve similar functionality. For example: List<Integer> doubled = list.stream().map(x -> x * 2).collect(Collectors.toList());.