ifMultiple.html

<!DOCTYPE html>
<html>
 <head><title>If Demo</title>
  <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.css">
  <script>
     var userDetails = {
         Name: "John",
         OTP : 4506070,
         PIN : 3344
     }
     function Verify() {
         var pin= document.getElementById("txtPin").value;
         if(pin==userDetails.PIN) {
             document.write("Verified Successfully using PIN");
         } else if(pin==userDetails.OTP) {
             document.write("Verified using OTP");
         } else {
             alert("Please Enter Valid PIN or OTP");
         }
     }
  </script>
 </head>
 <body>
     <div class="container">
        <fieldset>
            <legend>Verify Pin</legend>
            <div class="form-inline form-row">
                    <input type="text" id="txtPin" class="form-control" placeholder="You can use OTP/PIN">
                    <input type="button" value="Verify" class="btn btn-primary" onclick="Verify()">
            </div>
        </fieldset>
     </div>
 </body>
</html>