The code for Part 2 is different from that shown in the video.

[oceansize]

I believe this commit is where the material splits away from the recorded version.

In another issue on this repo I see that this might be a continuing problem throughout the course:

"I realize this means the code is out of sync with the slides in this section...sorry about that! I plan to do a refresher course with Frontend Masters sometime around early 2018, which will bring everything up to date!"

Surely there's a better way to approach this — either by putting the updated materials on a new branch/repo, or at least putting some notes in the repo and/or on the video to warn students.