HTML | DOM Input Week readOnly Property

Last Updated : 30 Aug, 2022

The DOM Input Week readOnly property in HTML DOM is used to set or return whether the Input Week Field should be read-only or not. It can be copied but can’t be modified.

Syntax:

It returns the readOnly property.

weekObject.readOnly

It is used to set the readOnly property.

weekObject.readOnly = "true|false"

Property Values:

true: It sets the readOnly property of week field.
false: It is the default value. It defines the week field is not read-only.

Return Value: It returns a boolean value which represents the week field is read-only or not.

Example-1: This example returns the Input Week readOnly property.

html

<!DOCTYPE html> 
<html> 
 
<head> 
    <title> 
        HTML DOM Input Week readOnly Property
    </title> 
</head> 
 
<body style="text-align:center;"> 
 
    <h1>GeeksForGeeks</h1> 
 
    <h2>DOM Input Week readOnly Property</h2> 
            <form id="myGeeks">
    <input type="week" id="week_id" name="geeks" readOnly> 
                 </form>
                 <br>
    <button onclick="myGeeks()">Click Here!</button> 
     
    <p id="GFG" style="font-size:20px;"></p> 
     
    <!-- Script to return the readOnly property-->
    <script> 
        function myGeeks() { 
            var gfg = document.getElementById("week_id").readOnly;
            document.getElementById("GFG").innerHTML = gfg;
        } 
    </script> 
</body> 
 
</html>                     

Output :

Before clicking on the button:

After clicking on the button:

Example-2: This Example illustrates how to set or change the readOnly property.

html

<!DOCTYPE html> 
<html> 
 
<head> 
    <title> 
        HTML DOM Input Week readOnly Property
    </title> 
</head> 
 
<body style="text-align:center;"> 
 
    <h1>GeeksForGeeks</h1> 
 
    <h2>DOM Input Week readOnly Property</h2> 
            <form id="myGeeks">
    <input type="week" id="week_id" name="geeks" readOnly> 
                </form>
                <br>
    <button onclick="myGeeks()">Click Here!</button> 
     
    <p id="GFG" style="font-size:20px;"></p> 
     
    <!-- Script to set the readOnly Property-->
    <script> 
        function myGeeks() { 
            var gfg = document.getElementById("week_id");
            gfg.readOnly = false;
            var g =    gfg.readOnly;        
            document.getElementById("GFG").innerHTML = g;
        } 
    </script> 
</body> 
 
</html>                    