Novalidate Attribute

Explanation

Novalidate Attribute is used to make particular input field invalidate (not validated), when user submits the form.

Example Code:

<script type='text/javascript'>
function novalidate()
{
 var novalidateval=document.getElementById("no-validate").value;
 document.getElementById("novalidate").innerHTML="<b>"+novalidateval+"</b>";
 }
</script>
Enter your mail id: <input type="novalidate" name="no-validate" id="no-validate" />
<br/>
<input type="button"  value='submit' onclick='novalidate()'/>
<div id='novalidate'>
</div>

Result :

Enter your mail id:

It is not necessary to vaidate certain fields like "Name, blood group", so this attribute can be used to invalidate those fields.
It is a "Boolean Attribute".
It is added with the <input>.