React How-To Guides

Practical, runnable how-to guides for common React tasks.

All React how-to guides pages

How to Handle Form Input in React

Handle a text input in React by holding its value in useState, binding value={x}, updating state in onChange, and reading the value on submit — the controlled-component pattern.

Practical React how-to guides: each one takes a single task and shows the clearest correct way to do it, the common mistakes to avoid, and code you can run and adapt.

Pick a task below, or run any solution in the React online compiler.

Frequently asked questions

Are these React how-tos copy-paste ready?

Yes. Each gives complete, working React code you can paste into a component, with a live preview of the result.

Do I need a build tool to use these?

Not to learn them — the embedded playground runs React directly. In your own project you would use the usual React toolchain.