Can I ask how many input types there are, and what their functions are?

Question

Input types

Answer 1

If you are talking about the html ones, a few examples are number, text, color, button, range, date, radio and checkbox.
You can read more about them in the html lesson, or search on Google.
Also, these may help:
https://code.sololearn.com/WGHQKuoXOW5y/?ref=app
https://code.sololearn.com/W7Hxid8o5Xo4/?ref=app
https://code.sololearn.com/WmIpcumItLtq/?ref=app

Answer 2

Thanks, Alex