Making Forms Even Cooler with React

2.1 What Are Controlled Components?

In React, we like to keep everything in check. A "controlled component" means React is in control of what's happening in the form. It helps us manage things more easily.

2.2 Adding More Fun: Checkboxes and Radio Buttons

Let's make our form more interesting! We can add checkboxes for subscribing to a newsletter and radio buttons for selecting gender.

// Imagine this is added to SimpleForm.js
// ...

const [subscribe, setSubscribe] = useState(false);
const [gender, setGender] = useState('');

// ...

<label>
  Subscribe to newsletter:
  <input
    type="checkbox"
    checked={subscribe}
    onChange={() => setSubscribe(!subscribe)}
  />
</label>

<br />

<label>
  Gender:
  <label>
    <input
      type="radio"
      name="gender"
      value="male"
      checked={gender === 'male'}
      onChange={() => setGender('male')}
    />{' '}
    Male
  </label>
  <label>
    <input
      type="radio"
      name="gender"
      value="female"
      checked={gender === 'female'}
      onChange={() => setGender('female')}
    />{' '}
    Female
  </label>