I worked out loud with the interviewer on solving the problem. Which was just me thinking out loud as I processed the problem and thought about how I would approach it. Conceptually there was not much about the problem that was too technically difficult. They did, however, place a bug in the boiler plate code they gave me (capitalization error in the name of one of the event listeners events) but it wasn’t a huge issue. Interestingly enough, I didn’t actually finish this problem. I got close, though, but what was important to me was that i demonstrated problem solving and debugging skills. I made sure to ask questions whenever I needed to clarify the problem, if I had questions about syntax (though they allowed me to use the documentation which was a life saver), and stated out loud the issues I was running into.