Javascript 是否在React Hook表单中验证以确保至少选中一个复选框？

我正在制作一个表单，其中有一个部分需要至少选中一个复选框。我正在使用ReactJS和ReactHook表单

以下是my

render

函数中代码的复选框部分：

{/* Checkbox group. User must select at least one medium. */}
<label><b>Medium (check all that apply): *</b></label>
<div>
 <label>
  <input type="checkbox" name="medium" value="Design & Illustration" onChange="validateMedium();"/><span>Design & Illustration</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Digital Art" onChange="validateMedium();"/><span>Digital Art</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Drawing" onChange="validateMedium();"/><span>Drawing</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Painting & Mixed Media" onChange="validateMedium();"/><span>Painting & Mixed Media</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Photography" onChange="validateMedium();"/><span>Photography</span>
 </label>
</div>

  ref={register({
    required: false,
    validate: validateMedium })}

{/*复选框组。用户必须至少选择一个媒体。*/}
中等（勾选所有适用项）：*
设计与插图
数字艺术
绘画
绘画与混合媒介
摄影

以下是我试图编写的验证复选框组的函数：

function validateMedium() {
    var mediumCheckboxes = document.getElementsByName("medium");
    var okay = false;

    for (var i = 0, len = mediumCheckboxes.length; i < len; i++) {
        if (mediumCheckboxes[i].checked) {
            okay = true;
            break;
        }
    }

    if (okay) {
        alert("Thank you");
    } else {
        alert("Please check at least one medium.");
    }
}

函数validateMedium（）{
var mediumcheckbox=document.getElementsByName（“medium”）；
var-ok=false；
对于（变量i=0，len=mediumcheckbox.length；i

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如何集成专门为此表单上的复选框组编写的验证函数？如果用户在单击submit按钮时没有选中至少一个复选框，我希望出现错误。我不想使用jQuery。

每个输入都应该有一个

ref

prop，它将注册验证功能：

{/* Checkbox group. User must select at least one medium. */}
<label><b>Medium (check all that apply): *</b></label>
<div>
 <label>
  <input type="checkbox" name="medium" value="Design & Illustration" onChange="validateMedium();"/><span>Design & Illustration</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Digital Art" onChange="validateMedium();"/><span>Digital Art</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Drawing" onChange="validateMedium();"/><span>Drawing</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Painting & Mixed Media" onChange="validateMedium();"/><span>Painting & Mixed Media</span>
 </label>
</div>
<div>
 <label>
  <input type="checkbox" name="medium" value="Photography" onChange="validateMedium();"/><span>Photography</span>
 </label>
</div>

  ref={register({
    required: false,
    validate: validateMedium })}

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查看react中的受控组件