基于日期输入动态显示/隐藏HTML表单文本字段

<label for="date-input">选择日期:</label>
<input type="date" id="date-input">

<div id="text-field-container" style="display: none;">
  <label for="text-field">文本字段:</label>
  <input type="text" id="text-field">
</div>

const dateInput = document.getElementById('date-input');
const textFieldContainer = document.getElementById('text-field-container');

dateInput.addEventListener('change', function() {
  if (dateInput.value !== '') {
    textFieldContainer.style.display = 'block';
  } else {
    textFieldContainer.style.display = 'none';
  }
});