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Add an option to select

önem: 5

There’s a <select>:

<select id="genres">
  <option value="rock">Rock</option>
  <option value="blues" selected>Blues</option>
</select>

Use JavaScript to:

  1. Show the value and the text of the selected option.
  2. Add an option: <option value="classic">Classic</option>.
  3. Make it selected.

The solution, step by step:

<select id="genres">
  <option value="rock">Rock</option>
  <option value="blues" selected>Blues</option>
</select>

<script>
  // 1)
  let selectedOption = genres.options[genres.selectedIndex];
  alert( selectedOption.value );

  // 2)
  let newOption = new Option("Classic", "classic");
  genres.append(newOption);

  // 3)
  newOption.selected = true;
</script>