Your first capstone

Lessons 2 through 8 each taught a handful of commands, one at a time. A capstone puts them together: it gives you a realistic piece of text, shows you what it should look like, and leaves the route to you.

Nothing here will name a key. If you get stuck, the lesson to look back at is named instead, and the course map (Ctrl+K or ⌘K) takes you there and back. Any sequence of commands that produces the target text earns the tick, and there are always at least two good ones.

The editor is showing the function you’ll tidy on the next step, already clean. Read it once so you know where you’re going, then move on. On the next step the same function comes back with the mess put in.