The most obvious thing you’ll need to build these sample apps is a Spotify account. Using it, you can log in to the Spotify ...

In this lab, we'll practice using parameters in our functions. We'll also learn how to create a default value for a parameter. If you haven't already, fork and clone this lab into your local ...

First post so let me quickly say thank you for all the hard work that has gone into this awesome offering, much appreciated by the whole family. I am finding that negative numbers passed as parameters ...

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

Each function takes other functions as parameters and returns a function. The only exception to this is the simple `value` function which takes a value and returns a function that itself will return ...