JavaScript project assignment MISSION 1❗: Strict Mode and localStorage

I'd like to write down some thoughts from doing JavaScript project assignment MISSION 1.

Before starting Zerobase Frontend School (a Korean online frontend course), I was fairly confident with HTML and CSS, but I had never studied JS, so I worried a lot. Really a lot. Still, I figured I might as well face it early, and that's how I got to the first assignment.

First, to avoid making syntax errors, I used what I had learned in the course 'JavaScript Complete Practice: 20 Toy Projects, 100 Feature Implementations',

Strict Mode, and I think I also used a util function that gets DOM objects from the HTML.

Keeping the state was the core of this project, and I think I solved that part easily with localstorage, which I had learned earlier from instructor 우희은's course.

I'll work hard on the remaining assignments too!!