fetching data in json file and looping through nodelist of my html

What are you most proud of, and what would you do differently next time?

About nodelist because I wonder on how can I loop through my html element with the same class and I found that it was called nodelist. So nodelist basically a group element that has same class. So in other words this helps me a lot and make it easier for me to add event listener for my button instead of getting their id one by one.