Javascript DOM HTML Input Date required Property set

Introduction

Set a date field to be a required of form submission: 

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

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

View in separate window 

<!DOCTYPE html>
<html>
<body>

<form action="/action_page.php">
  Date: <input type="date" id="myDate" name="date">
  <input type="submit">
</form>/*from  w  ww.j  a va2  s  .c  om*/
<button onclick="myFunction()">Test</button>
<p id="demo"></p>

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

</body>
</html>



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