html5 required and jQuery submit()

Question

I\'m trying to implement html5 into a form, but I came with a problem when I submit the form through jquery and try to use the html5 \"required\" attribute.

Here is

Answer 1

You can

• trigger click event on a submit
• check validation manually with $("form")[0].checkValidity()
• find invalid elements manually using $("form :invalid")

Answer 2

Here are some examples, how to validate html5:

function validateForm(form) {
  if (form.username.value=='') {
    alert('Username missing');
    return false;
  }
  return true;
}

<form action="index.php" name="loginform" method="post" onsubmit="if (!validateForm(this)) event.preventDefault();">
  <input name="username" placeholder="username" required="required" type="text" />
  <a href="" onclick="event.preventDefault(); $(document.forms.loginform).submit();">Login1</a>
  <a style="cursor:pointer;" onclick="$(document.forms.loginform).submit();">Login2</a>
  <input name="send" type="submit" value="Login3" />
  <input name="send" type="button" value="Login4" onclick="$(document.forms.loginform).submit();" />
</form>

Full code here. One thing here is strange: $(document.forms.loginform).submit(); works fine, but document.forms.loginform.submit(); fails. Can somebody explain why?

Answer 3

Working demo http://jsfiddle.net/3gFmC/

Hope this will help :)

code

$('#btn_submit').bind('click', function() {

        $('input:text[required]').parent().show();
        // do whatever;
 });

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