如何使復選框刪除表單中的“必需”驗證

Question

我想知道如何在復選框中刪除特定無線電組的“必需”驗證。

如果選中此復選框，則我不希望強制執行“ required”屬性。

這是我現有的HTML的一個示例： https : //codepen.io/anon/pen/PrbOPK

<label for="Group1_notRequired">Check here to make radio buttons in Gorup 1 NOT required:</label> <input id="Group1_notRequired" name="Group1_notRequired" type="checkbox" value="Group1_notRequired" />
<br><br><br>
<label><input name="Group1" required="" type="radio" value="Option1" />Group 1 Option 1</label>
<label><input name="Group1" required="" type="radio" value="Option2" />Group 1 Option 2</label>
<br><br><br>
<label><input name="Group2" required="" type="radio" value="Option1" />Group 2 Option 1</label>
<label><input name="Group2" required="" type="radio" value="Option2" />Group 2 Option 2</label>

Answer 1

您可以使用.removeAttr（）和.attr（）刪除/添加屬性：

 $('#Group1_notRequired').on('change', function(e) { if (this.checked == true) { $('[name="Group1"]').removeAttr('required'); } else { $('[name="Group1"]').attr('required', ''); } console.log($('[name="Group1"]').parent()[0].outerHTML); }) 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <label for="Group1_notRequired">Check here to make radio buttons in Gorup 1 NOT required:</label> <input id="Group1_notRequired" name="Group1_notRequired" type="checkbox" value="Group1_notRequired" /> <br><br><br> <label><input name="Group1" required="" type="radio" value="Option1" />Group 1 Option 1</label> <label><input name="Group1" required="" type="radio" value="Option2" />Group 1 Option 2</label> <br><br><br> <label><input name="Group2" required="" type="radio" value="Option1" />Group 2 Option 1</label> <label><input name="Group2" required="" type="radio" value="Option2" />Group 2 Option 2</label> 

Answer 2

我的建議：

$radioG1 = $('[name="Group1"]')
$cbxG1 = $('#Group1_notRequired')

$cbxG1.change(function() {
  $radioG1.prop("required", !this.checked)
})