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HTML | DOM Input Week defaultValue Property

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  • Difficulty Level : Basic
  • Last Updated : 29 Aug, 2022
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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>

Output: 

Before clicking on the button: 

 

After clicking on the button:

  

Supported Browsers: The browser supported by DOM input Week defaultValue Property are listed below:

  • Google Chrome 20+
  • Edge 12+
  • Opera 11+

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


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