Help with Tracklist.js in the Jammming project

Hi, I couldn’t find an answer to my question, so I’m posting it here. In the Jammming project, I understand the file structure and what needs to be done, but I’m confused about the Tracklist.js file.

Once all the data from the Spotify API is loaded into Playlist.js, I’m not sure what the Tracklist.js file is supposed to do. Could someone please explain its purpose and how it fits into the flow of the project?

Thank you for your help!