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

Syntax:

It returns the readOnly property.

monthObject.readOnly

It is used to set the readOnly property.

monthObject.readOnly = "true|false"

Property Values:

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

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

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

HTML

<!DOCTYPE html>
<html>
<head>
    <title>
     HTML DOM Input Month readOnly Property
    </title>
</head>
<body style="text-align:center;">
    <h1>w3wiki</h1>
    <h2>
          DOM Input Month readOnly Property
      </h2>
    <form id="myBeginner">
        <input type="month" 
               id="month_id" 
               name="Beginner" 
               readOnly>
    </form>
    <br>
    <button onclick="myBeginner()">
          Click Here!
      </button>
    <p id="GFG" 
           style="font-size:20px;">
      </p>
 
    <!-- Script to return
      the readOnly property-->
    <script>
        function myBeginner() {
           
            var gfg = 
                document.getElementById(
                  "month_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 Month readOnly Property
    </title>
</head>
<body style="text-align:center;">
    <h1>w3wiki</h1>
    <h2>DOM Input Month readOnly Property</h2>
    <form id="myBeginner">
        <input type="month" 
               id="month_id" 
               name="Beginner" 
               readOnly>
    </form>
    <br>
    <button onclick="myBeginner()">
          Click Here!
      </button>
    <p id="GFG" 
           style="font-size:20px;">
      </p>
 
    <!-- Script to set the 
     readOnly Property-->
    <script>
        function myBeginner() {
           
            var gfg = 
                document.getElementById(
                  "month_id");
            gfg.readOnly = false;
            var g = gfg.readOnly;
           
            document.getElementById(
              "GFG").innerHTML = g;
        }
    </script>
</body>
</html>

Output:

Before clicking on the button:

After clicking on the button:

Supported Browsers: The browser supported by DOM input Month readOnly Property are listed below:

Google Chrome 20 and above
Edge 12 and above
Opera 11 and above

Note: In Firefox, the input type=”month” element does not show any date field or calendar.

HTML | DOM Input Month readOnly Property

HTML

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