e.target.value on an input field ReactJs, how does it work?

Question

https://facebook.github.io/react/docs/thinking-in-react.html

I'm at the end of this tutorial and I'm just not understanding how e.target.value works. Walk through the end of this tutorial and see the sample code that there is please. I'm newbie both to React and Javascript.

Answer 1

When you need to handle multiple controlled input elements, you can add a name attribute to each element and let the handler function choose what to do based on the value of event.target.name. By React DOC