Javascript DOM HTML Input Password required Property set

Introduction

Set a password field to be a required part of form submission: 

document.getElementById("myPassword").required = true;

Click the button to set the required property for the password field.

View in separate window 

<!DOCTYPE html>
<html>
<body>

<form action="/action_page.php">
   Password: <input type="password" id="myPsw" name="usr_psw">
  <input type="submit">
</form>/*from   w ww  .j  a v a2s  .  co m*/
<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
  document.getElementById("myPsw").required = true;
  document.getElementById("demo").innerHTML = "The required property was set.";
}
</script>

</body>
</html>



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