HTML DOM Input Time required Property

HTML Web Development Front End Technology

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

Syntax

Following is the syntax −

Returning boolean value - true/false

inputTimeObject.required

Setting required to booleanValue

inputTimeObject.required = booleanValue

Boolean Values

Here, “booleanValue” can be the following −

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

Example

Let us see an example of Input Time required property −

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>Input Time 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>Time-required</legend>
<label for="TimeSelect">Appointment with Supervisor:</label>
<input type="time" id="TimeSelect" required>
<input type="button" onclick="fixMeeting()" value="Fix Meeting">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputTime = document.getElementById("TimeSelect");
   function fixMeeting() {
      if(inputTime.required === true && inputTime.value === '')
         divDisplay.textContent = 'The meeting time is required';
      else
         divDisplay.textContent = 'The meeting time fixed at: '+inputTime.value;
   }
</script>
</body>
</html>