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

I'm proud that I was able to validate the form

What challenges did you encounter, and how did you overcome them?

I came across the fact that there are several events associated with receiving data from the form and that it is possible to validate the form well with JavaScript

What specific areas of your project would you like help with?

I think the implementation could be better, maybe someone can give advice.