如何过滤内联表单集中的下拉列表

<form id="myForm">
  <select>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
  </select>
  <select>
    <option value="4">Option 4</option>
    <option value="5">Option 5</option>
    <option value="6">Option 6</option>
  </select>
</form>

<script>
  // 获取内联表单集的DOM元素
  const form = document.getElementById("myForm");

  // 遍历表单元素
  const selects = form.getElementsByTagName("select");
  for (let i = 0; i < selects.length; i++) {
    const select = selects[i];

    // 判断元素类型
    if (select.tagName === "SELECT") {

      // 进行过滤操作
      const options = select.getElementsByTagName("option");
      for (let j = 0; j < options.length; j++) {
        const option = options[j];

        // 根据过滤条件进行筛选
        if (option.value === "2" || option.value === "5") {
          // 隐藏选项
          option.style.display = "none";
        }
      }
    }
  }
</script>