HTML | DOM Input Week defaultValue Property

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.

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<!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>                     

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Output
Before clicking on the button:

After clicking on the button:

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

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<!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>                    

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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
  • Internet Explorer 10.0 +
  • Firefox
  • Opera
  • Safari

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



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