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HTML | DOM Input DatetimeLocal readOnly Property

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  • Difficulty Level : Basic
  • Last Updated : 28 Jun, 2022

The Input DatetimeLocal readOnly property is used to set or return whether a datetimeLocal 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 DatetimeLocal readOnly property.

Syntax:

  • To return the readOnly property:
datetimelocalObject.readOnly
  • To set the readOnly property:
datetimelocalObject.readOnly = true|false

Property Value:

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

Return Value : It returns a Boolean value that represents whether the Input DateTimeLocal field would be readOnly or not. 

Below program illustrates the DatetimeLocal readOnly property : 

Example: Setting a datetimeLocal field to read-only. 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
      Input DatetimeLocal
      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 DatetimeLocal readOnly Property
  </h2>
    <br> Date Of Birth:
   
    <input type="datetime-local"
           id="Test_DatetimeLocal"
           name="DOB">
 
     
<p>
      To set the date time to read-only,
      double-click the "Set Read-Only" button.
  </p>
 
 
    <button ondblclick="My_DatetimeLocal()">
      Set Read-Only
  </button>
 
    <script>
        function My_DatetimeLocal() {
            document.getElementById(
              "Test_DatetimeLocal").readOnly =
              true;
        }
    </script>
 
</body>
 
</html>


Output: 

 

After clicking the button:

 

Note : The <input type=”datetime-local”> element does not show any datetime field/calendar in Firefox. 

Supported Browsers:

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


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