阻止表单提交但保留表单验证

Question

How do I retain the default HTML form validation and yet prohibit form submitting? I have tried using event.preventDefault() and return false . Both are successful in stopping the form from submitting but both fail in form validation. I have also tried this solution , but even that does not work.

Is anybody able to help me?

Answer 1

Both event.preventDefault() and return false; work if used on form submit. The HTML 5 validation is still present.

 jQuery("form").submit(function(e){ e.preventDefault(); //or //return false; });

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form action="" method="post"> <input id="name" type="text" required="required" /> <input id="email" type="email" required="required" /> <input type="submit" id="btnSubmit" /> </form>

Answer 2

I use checkValidity() and reportValidity() to solve this problem.

Assume your form has id as FORM_ID

Sample code:

function handleSubmit (e) {
  e.preventDefault(); 
  var ele = document.getElementById("FORM_ID");
  var chk_status = ele.checkValidity();
  ele.reportValidity();
  if (chk_status) {
    ...
    // do your customized submit operations here.  
  }
}

reference