Function composition

Steve looked at Julia with a mix of excitement and nervousness.

Steve: So, we’re finally putting all the pieces together? I’m excited but a little overwhelmed.

Julia: Don’t worry, Steve. We’ll take it step by step. Remember, these concepts build on each other. You’ve already learned a lot!

Steve: You’re right. I’m ready to dive in. Where do we start?

Julia: Let’s begin with function composition. It’s a great way to combine everything we’ve learned so far...

Function composition is the process of combining two or more functions to produce a new function. Let’s spice things up a notch and add higher-order functions to our composition example.

Consider a scenario where we need to transform a list of user data. We have the following higher-order functions:

map: Applies a function to each element in a list

filter: Filters elements in a list based on a predicate

We...