如何从表单中获取所有输入-不能从选择器中获取

<form id="myForm">
  <input type="text" name="name" value="John">
  <input type="email" name="email" value="john@example.com">
  <input type="checkbox" name="subscribe" checked>
  <input type="radio" name="gender" value="male" checked> Male
  <input type="radio" name="gender" value="female"> Female
</form>

var form = document.getElementById("myForm");
var inputs = form.elements;

var formData = {};
for (var i = 0; i < inputs.length; i++) {
  var input = inputs[i];
  var name = input.name;
  var value = input.value;

  // 忽略没有name属性或者没有值的表单元素
  if (name && value) {
    if (input.type === "checkbox" || input.type === "radio") {
      // 对于复选框和单选框，只获取选中的值
      if (input.checked) {
        formData[name] = value;
      }
    } else {
      formData[name] = value;
    }
  }
}

console.log(formData);