HTML DOM Input Time required Property

HTMLWeb DevelopmentFront 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 −

booleanValueDetails
trueIt is compulsory to set the time field to submit form.
falseIt 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>

Output

This will produce the following output −

Clicking ‘Fix Meeting’ button with empty time field −

After clicking ‘Fix Meeting’’ button with time field set −

raja
Updated on 30-Jul-2019 22:30:26

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