html select multiple show selected code example

Example 1: how to choose multiple option from select option

<!-- JUST ADD multiple ATTRIBUTE WITHIN select ATTRIBUTE -->
Cars:<br>
<select name="car" multiple>
    <option value="Volvo">Volvo</option>
    <option value="Thar">Thar</option>
    <option value="Audi">Audi</option>
</select>

Example 2: how to get values from select multiple in js

document.getElementById('submit').onclick = function() {
  var selected = [];
  for (var option of document.getElementById('pets').options) {
    if (option.selected) {
      selected.push(option.value);
    }
  }
  alert(selected);
}