1. In a vanilla JS app, at what point in the form submission
   process do you gather all the data from the filled-out form?
   


2. In a React app, when do you gather all the data from
   the filled-out form?



3. Which attribute in the form elements (value, name, onChange, etc.)
   should match the property name being held in state for that input?
   


4. What's different about a saving the data from a checkbox element
   vs. other form elements?



5. How do you watch for a form submit? How can you trigger
   a form submit?