jQuery addClass example
Change class name on click in jQuery
HTML
<form id='form'>
<button id='submitBtn' disabled='disabled'>
Submit Btn
</button>
<button type='button' id='updateBtn'>
Update Btn
</button>
</form>
JavaScript
const $form = $('#form');
const $submitBtn = $('#submitBtn');
const $updateBtn = $('#updateBtn');
$updateBtn.on('click', function(){
$submitBtn.prop('disabled', false);
});
$submitBtn.on('click', function(){
$form.submit();
});