React - checkbox example

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In this article, we would like to show you how to use a checkbox in React.

Below example shows a form as a functional component with a single checkbox and submit button.

We use useState hook to store boolean agreement state and setAgreement function to modify it.

Quick solution:

// ONLINE-RUNNER:browser;

//Note: Uncomment import lines during working with JSX Compiler.
//import React from 'react';
const Form = props => {
  const [agreement, setAgreement] = React.useState(false);
  const handleChange = e => setAgreement(;
  const handleSubmit = e => {
	console.log(`checked: ${agreement}`);
  return (
	<form onSubmit={handleSubmit}>
		  <input type="checkbox" checked={agreement} onChange={handleChange} />
		  <span>Consent to the data processing</span>
	  <button type="submit">Submit</button>

const root = document.querySelector('#root');
ReactDOM.render(<Form />, root );


Go to this article to see class component example.


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