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HTML | DOM Input Date readOnly Property

  • Difficulty Level : Basic
  • Last Updated : 17 Jun, 2021

The Input Date readOnly property is used for setting or returning whether a date field should be read-only, or not. 
Once a field has been declared read-only, it cannot be further modified. However, the read-only field can be tabbed, highlighted and can be used for copying text. 
The HTML readonly attribute is reflected by the Input Date readOnly property.

Syntax: 
 

  • For returning the readOnly property: 
     
inputdateObject.readOnly
  • For setting the readOnly property: 
     
inputdateObject.readOnly = true|false

Property Value: 
 

  • true|false : It is used to specify whether the date field will be read-only or not.

Return Values: It returns a Boolean value which represents that the date field would be readonly or not. 

The below program illustrates the Date readOnly property :
Example 1: Setting a date field to read-only. 
 



html




<!DOCTYPE html>
<html>
 
<head>
    <title>Input Date readOnly Property in HTML</title>
    <style>
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
 
<body>
 
    <h1>GeeksforGeeks</h1>
    <h2>Input Date readOnly Property</h2>
    <br> Date Of Birth:
    <input type="date" id="Test_Date" name="DOB">
 
     
 
<p>To set the date to read-only,
      double-click the "Set Read-Only" button.</p>
 
 
 
    <button ondblclick="My_Date()">Set Read-Only</button>
 
    <p id="test"></p>
 
 
 
    <script>
        function My_Date() {
            document.getElementById("Test_Date").readOnly = true;
        }
    </script>
 
</body>
 
</html>                                       

Output: 
 Before: 

After clicking the button: 
 

Example 2: Below code returns the date readonly property. 

HTML




<!DOCTYPE html>
<html>
 
<head>
    <title>Input Date readOnly Property in HTML</title>
    <style>
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
 
<body>
 
    <h1>GeeksforGeeks</h1>
    <h2>Input Date readOnly Property</h2>
    <br> Date Of Birth:
    <input type="date" id="Test_Date" name="DOB">
 
     
 
<p>To return the date to read-only,
      double-click the "Set Read-Only" button.</p>
 
 
 
    <button ondblclick="My_Date()">Return Read-Only</button>
 
    <p id="test"></p>
 
 
 
    <script>
        function My_Date() {
        var g =     document.getElementById("Test_Date").readOnly;
            document.getElementById("test").innerHTML = g
        }
    </script>
 
</body>
 
</html>                                       

Output:

Before: 

After clicking the button: 

Supported Web Browsers: 
 

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

 

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