How to pass something from a child component to a parent component in React?

Question

React

I can not understand how to correctly implement the task.

There is a Home
page and there is a component inserted button

In Home created a variable counter = 0

I want the button to do counter++ and return the data back to Home

Answer 1

In Home, describe the function to change counter. And pass through the props to the button component. In button hang this props on onClick event

Answer 2

Hey, who did the documentation for?

Answer 3

Through custom events.