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HTML | DOM Input Datetime required Property
  • Difficulty Level : Basic
  • Last Updated : 28 Feb, 2019
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The Input Datetime required property is used to check whether a datetime field must be filled out or not before submitting a form.

Syntax:

  • For returning the required property:
    datetimeObject.required
  • For setting the required property:
     datetimeObject.required = true|false 

Property Value:

  • true|false : It is used to specify whether a datetime field should be a required part of form submission or not.

Below program illustrates the Datetime required property :

Finding out if a datetime field must be filled out before submitting a form or not.






<!DOCTYPE html>
<html>
  
<head>
    <title>Input Datetime required Property in HTML</title>
    <style>
        h1 {
            color: green;
        }
          
        h2 {
            font-family: Impact;
        }
          
        body {
            text-align: center;
        }
    </style>
</head>
  
<body>
  
    <h1>GeeksforGeeks</h1>
    <h2>Input Datetime required Property</h2>
    <br>
  
    <form action="/initials.php">
        Date of Birth:
        <input type="datetime" id="Test_Datetime" name="DOB" required>
        <input type="submit">
    </form>
  
    <p>To find out if the datetime field must be filled out before 
        submitting the form, double-click the "Check" button.</p>
  
    <button ondblclick="My_Datetime()">Check</button>
  
    <p id="test"></p>
  
    <script>
        function My_Datetime() {
            var d = document.getElementById("Test_Datetime").required;
            document.getElementById("test").innerHTML = d;
        }
    </script>
  
</body>
  
</html>
                                           

Output:

After clicking the button

Supported Web Browsers

  • Apple Safari
  • Internet Explorer
  • Firefox
  • Google Chrome
  • Opera

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