Select multiple change event with javascript

I ma trying to get selected values from select element with multiple attribute. jQuery would return an array, but javascript only retuerns single value if multiple are selected.

var fruits = document.getElementById('fruits')

fruits.addEventListener('change', function() {

  var selected = fruits.value
  console.log(selected)

})
<select multiple="true" id="fruits">
  <option value="apple">Apple</option>
  <option value="banana">Banana</option>
  <option value="mango">Mango</option>
  <option value="grape">Grape</option>
  <option value="watermelon">watermelon</option>
</select>