使用 jQuery 删除 html5 必需属性

Question

Hi I would like to remove the 'required=""' attribute with jquery.

<input 
   type="text" 
   id="edit-submitted-first-name" 
   name="submitted[first_name]" 
   value="" 
   size="30" 
   maxlength="128" 
   required=""
>

Answer 1

Just:

$('#edit-submitted-first-name').removeAttr('required');​​​​​

If you're interested in further reading take a look here .

Answer 2

If you want to set required to true

$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',true);
});

if you want to set required to false

$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',false);
});

Answer 3

Using Javascript:

document.querySelector('#edit-submitted-first-name').required = false;

• More Info Here

---

Using jQuery:

$('#edit-submitted-first-name').removeAttr('required');

• More Info Here

Answer 4

 $('#id').removeAttr('required');​​​​​

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Answer 5

Even though the ID selector is the simplest, you can also use the name selector as below:

$('[name='submitted[first_name]']').removeAttr('required');

For more see: https://api.jquery.com/attribute-equals-selector/