如何从Combobox获取值以写入textbox

<select id="myCombobox">
  <option value="value1">Option 1</option>
  <option value="value2">Option 2</option>
  <option value="value3">Option 3</option>
</select>

<input type="text" id="myTextbox">

const combobox = document.getElementById('myCombobox');
const textbox = document.getElementById('myTextbox');

combobox.addEventListener('change', function() {
  const selectedValue = combobox.value;
  textbox.value = selectedValue;
});