Higher-order Functions In JavaScript

A higher-order function is a function that either *takes a function as one of its parameters or *returns another function. Why you would want to do this will become more clear as you explore the logic of a higher-order function. So, let’s take a look.

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The first time I heard about higher-order functions I couldn’t wrap my mind around what it actually meant and why they are called this way.

You are probably already familiar with regular functions in JavaScript. They are usually referred to as first-order functions. But they usually never take a function as one of its parameters, nor return another function.

But why would we even want to pass or return a function from another function? This…