如何通过传递对象来初始化表单输入值？

<form id="myForm">
  <input type="text" id="username" name="username">
  <input type="email" id="email" name="email">
  <input type="password" id="password" name="password">
</form>

<script>
  // 创建包含初始值的对象
  var formData = {
    username: "JohnDoe",
    email: "johndoe@example.com",
    password: "password123"
  };

  // 初始化表单输入值
  document.getElementById("username").value = formData.username;
  document.getElementById("email").value = formData.email;
  document.getElementById("password").value = formData.password;
</script>