Radio Group

<wa-radio-group label="Select an option" name="a" value="1">
  <wa-radio value="1">Option 1</wa-radio>
  <wa-radio value="2">Option 2</wa-radio>
  <wa-radio value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group label="Select an option" hint="Choose the most appropriate option." name="a" value="1">
  <wa-radio value="1">Option 1</wa-radio>
  <wa-radio value="2">Option 2</wa-radio>
  <wa-radio value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group
  label="Horizontal options"
  hint="Select an option that makes you proud."
  orientation="horizontal"
  name="a"
  value="1"
>
  <wa-radio appearance="button" value="1">Option 1</wa-radio>
  <wa-radio appearance="button" value="2">Option 2</wa-radio>
  <wa-radio appearance="button" value="3">Option 3</wa-radio>
</wa-radio-group>

<br />

<wa-radio-group
  label="Vertical options"
  hint="Select an option that makes you proud."
  orientation="vertical"
  name="a"
  value="1"
  style="max-width: 300px;"
>
  <wa-radio appearance="button" value="1">Option 1</wa-radio>
  <wa-radio appearance="button" value="2">Option 2</wa-radio>
  <wa-radio appearance="button" value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group label="Select an option" disabled>
  <wa-radio value="1">Option 1</wa-radio>
  <wa-radio value="2" disabled>Option 2</wa-radio>
  <wa-radio value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group label="Select an option">
  <wa-radio value="1">Option 1</wa-radio>
  <wa-radio value="2" disabled>Option 2</wa-radio>
  <wa-radio value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group
  label="Select an option"
  hint="Choose the most appropriate option."
  orientation="horizontal"
  name="a"
  value="1"
>
  <wa-radio value="1">Option 1</wa-radio>
  <wa-radio value="2">Option 2</wa-radio>
  <wa-radio value="3">Option 3</wa-radio>
</wa-radio-group>

<wa-radio-group label="Select an option" size="medium" value="medium" onchange="this.size = this.value">
  <wa-radio value="small">Small</wa-radio>
  <wa-radio value="medium">Medium</wa-radio>
  <wa-radio value="large">Large</wa-radio>
</wa-radio-group>

<form class="validation">
  <wa-radio-group label="Select an option" name="a" required>
    <wa-radio value="1">Option 1</wa-radio>
    <wa-radio value="2">Option 2</wa-radio>
    <wa-radio value="3">Option 3</wa-radio>
  </wa-radio-group>
  <br />
  <wa-button type="submit" variant="brand">Submit</wa-button>
</form>

<script>
  const form = document.querySelector('.validation');

  // Handle form submit
  form.addEventListener('submit', event => {
    event.preventDefault();
    alert('All fields are valid!');
  });
</script>

<form class="custom-validity">
  <wa-radio-group label="Select an option" name="a" value="1">
    <wa-radio value="1">Not me</wa-radio>
    <wa-radio value="2">Me neither</wa-radio>
    <wa-radio value="3">Choose me</wa-radio>
  </wa-radio-group>
  <br />
  <wa-button type="submit" variant="brand">Submit</wa-button>
</form>

<script>
  const form = document.querySelector('.custom-validity');
  const radioGroup = form.querySelector('wa-radio-group');
  const errorMessage = 'You must choose the last option';

  // Set initial validity as soon as the element is defined
  customElements.whenDefined('wa-radio-group').then(() => {
    radioGroup.setCustomValidity(errorMessage);
  });

  // Update validity when a selection is made
  form.addEventListener('change', () => {
    const isValid = radioGroup.value === '3';
    radioGroup.setCustomValidity(isValid ? '' : errorMessage);
  });

  // Handle form submit
  form.addEventListener('submit', event => {
    event.preventDefault();
    alert('All fields are valid!');
  });
</script>