如何将下拉选择设置为localStorage？

<select id="mySelect">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

const selectElement = document.getElementById('mySelect');

selectElement.addEventListener('change', function() {
  // 在这里执行保存到localStorage的操作
});

const selectElement = document.getElementById('mySelect');

selectElement.addEventListener('change', function() {
  const selectedOption = selectElement.value;
  localStorage.setItem('selectedOption', selectedOption);
});

const selectElement = document.getElementById('mySelect');

// 检查localStorage中是否存在上次选择的选项值
if (localStorage.getItem('selectedOption')) {
  const selectedOption = localStorage.getItem('selectedOption');
  selectElement.value = selectedOption;
}

selectElement.addEventListener('change', function() {
  const selectedOption = selectElement.value;
  localStorage.setItem('selectedOption', selectedOption);
});