In the previous lesson, we have learnt some useful Higher Order Functions to manipulate arrays & objects. Now, let's put them to use in this lab. The splice() method adds/removes items to/from an ...

While array iteration methods are a very common example of higher-order functions, an even more common time that we want to pass functions as arguments to other functions is called a callback. These ...

Those are examples of higher-order functions that accept functions as arguments, but plenty of them return functions as well. If you’ve ever seen a function call that has two sets of parentheses ...