HTML | DOM Input Week defaultValue Property

Last Updated : 29 Aug, 2022

The DOM Input Week defaultValue property in HTML DOM is used to set or return the default value of a week field. It is the value specified in the value attribute.

Syntax:

It returns the defaultValue property.

weekObject.defaultValue

It is used to set the defaultValue property.

weekObject.defaultValue = value

Property Values:

value: It specifies the default value of the week field.

Return Value: It returns the value of the week field in the form of a string.

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

HTML

<!DOCTYPE html> 
<html> 
<head> 
    <title> 
        HTML DOM Input Week defaultValue Property
    </title> 
</head> 
<body style="text-align:center;"> 
    <h1>GeeksForGeeks</h1> 
    <h2>DOM Input Week defaultValue Property</h2> 
    <form id="myGeeks">
        <input type="week" id="week_id" name="geeks" value="2019-W10"> 
    </form>
    <br>
    <button onclick="myGeeks()">Click Here!</button> 
    <p id="GFG" style="font-size:20px;"></p> 
    
    <!-- Script to return the  defaultValue-->
    <script> 
        function myGeeks() { 
            var gfg = document.getElementById("week_id").defaultValue;
            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 defaultValue.

HTML

<!DOCTYPE html> 
<html> 
<head> 
    <title> 
        HTML DOM Input Week defaultValue Property
    </title> 
</head> 
<body style="text-align:center;"> 
    <h1>GeeksForGeeks</h1> 
    <h2>DOM Input Week defaultValue Property</h2> 
    <form id="myGeeks">
        <input type="week" id="week_id" name="geeks" value = "2019-W10"> 
    </form>
    <br>
    <button onclick="myGeeks()">Click Here!</button> 
    <p id="GFG" style="font-size:20px;"></p> 
    
    <!-- Script to set the defaultValue of week field-->
    <script> 
        function myGeeks() { 
            var gfg = document.getElementById("week_id");
            gfg.defaultValue = "2019-W15";
            var g =    gfg.defaultValue;        
            document.getElementById("GFG").innerHTML = g;
        } 
    </script> 
</body> 
</html>