How do map and filter functions work in different programming languages?

Can you explain how the map function works in Python?

In Python, the map function applies a given function to all items in an iterable (like a list) and returns a map object. You can convert it to a list using the list() function.

What about the filter function in JavaScript?

In JavaScript, the filter function creates a new array with all elements that pass the test implemented by the provided function. It's commonly used with arrow functions for concise syntax.

Are there similar functions in Ruby?

Yes, in Ruby, you can use the map method to transform elements of an array and the select method to filter elements based on a condition.

Can you give me an example of using map and filter in Java?

In Java, you can use streams. For example, list.stream().map(x -> x * 2).filter(x -> x > 10).collect(Collectors.toList()); doubles the elements and filters those greater than 10.