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How to validate PAN number Using jQuery

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<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<script type="text/javascript">    
$(document).ready(function(){    
$(".pan").change(function () {      
var inputvalues = $(this).val();      
  var regex = /([A-Z]){5}([0-9]){4}([A-Z]){1}$/;    
    if(!regex.test(inputvalues)){      
       $(".error").text("Invalid Pan No !");  
      // return regex.test(inputvalues);    
    }
    else{
    $(".error").hide();
}
});      
   
});    
</script>    
   
PAN : <input type="text" class="pan">  
<p style="color:red;" class="error"></p>
</body>
</html>
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