HTML DOM Input DatetimeLocal required Property

The HTML DOM Input DatetimeLocal required property determines whether Input DatetimeLocal is compulsory to set or not.

Syntax

Following is the syntax −

Returning boolean value - true/false

inputDatetimeLocalObject.required

Setting required to booleanValue

inputDatetimeLocalObject.required = booleanValue

Boolean Values

Here, “booleanValue” can be the following −

booleanValue	Details
true	It is compulsory to set the datetimeLocal field to submit form.
false	It is the default value and to set datetimeLocal field is not compulsory.

Example

Let us see an example of Input DatetimeLocal required property −

<!DOCTYPE html>
<html>
<head>
<title>Input DatetimeLocal required</title>
<style>
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   * {
      padding: 2px;
      margin:5px;
   }
   input[type="button"] {
      border-radius: 10px;
   }
</style>
</head>
<body>
<form>
<fieldset>
<legend>Datetime-Local-required</legend>
<label for="datetimeLocalSelect">Examination Slot :
<input type="datetime-local" id="datetimeLocalSelect" value="" required>
</label>
<input type="button" onclick="confirmSlotBooking()" value="Confirm Slot">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputDatetimeLocal = document.getElementById("datetimeLocalSelect");
   divDisplay.textContent = 'Slot Required: '+inputDatetimeLocal.required;
   function confirmSlotBooking() {
      if(inputDatetimeLocal.value === '')
         divDisplay.textContent += ', Choose a valid Exam Slot. ';
      else
         divDisplay.textContent = 'Slot Confirmed: '+inputDatetimeLocal.required+', Your Slot: '+inputDatetimeLocal.value;
   }
</script>
</body>
</html>

Output

This will produce the following output −

Clicking ‘Confirm Slot’ button −

HTML DOM Input DatetimeLocal required Property

After clicking ‘Confirm Slot’ button with value of datetimeLocal field set −

HTML DOM Input DatetimeLocal required Property