What are higher-order functions in programming?

What are higher-order functions in programming?

Higher-order functions are functions that can take other functions as arguments or return them as results.

Can you give me an example of a higher-order function?

Sure! A common example is the map function, which applies a given function to each item in a list.

How does the map function work in JavaScript?

In JavaScript, map creates a new array by applying a function to each element of the original array.

Can you show me a code snippet using map?

Absolutely! Here's a simple example: const numbers = [1, 2, 3]; const doubled = numbers.map(num => num * 2); This will return [2, 4, 6].