Working with input, follow-up?

Question

React

Good day. I have a question, I enter data into the input (numerical value), how can I make it so that when I click on the button (let's say to calculate), I perform some actions with this number, add the first and last digit, and so on. And they were displayed in a new window, skinte where to read the info about it.
Thank you.

Answer 1

State
controlled inputs