Getting data from a js form?

Question

JavaScript

Hello everyone, please tell me about this issue:
I have a registration form:
"Enter first name: "
"Enter last name: "
"Enter your number: "
I need to display on a separate page all users who have filled out the form.
So, how do I get data from this form?
Or in what way?
As I understand it, I need to create an empty array and place objects there in which the first name, last name
and gender will be written. But how to get the data without a clue. I'm new)
I work in Reacte.

Answer 1

I suspect that you do not save data to the server