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HTML | DOM Input Hidden defaultValue Property

Last Updated : 23 Sep, 2022
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The Input Hidden defaultValue Property in HTML DOM is used to set or return the default value of a hidden field. This property is used to reflect the HTML value attribute. The main difference between the default value and value is that the default value indicates the default value and the value contains the current value after making some changes. This property is useful to find out whether the hidden field has been changed or not. 

Syntax: 

  • It returns the defaultValue property.
hiddenObject.defaultValue
  • It is used to set the defaultValue property.
hiddenObject.defaultValue = value

Property Values: It contains single property value value which defines the default value for Input hidden field. 

Return Value: It returns a string value which represents the default value of the Input hidden field. 

Example 1: This example illustrates how to return Input hidden defaultValue property. 

html




<!DOCTYPE html>
<html>
     
<head>
    <title>
        HTML Input Hidden defaultValue Property
    </title>
</head>
 
<body style="text-align:center;">
 
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
     
    <h2>DOM Input Hidden defaultvalue Property</h2>
     
    <input type="hidden" id="GFG"
                value="GeeksForGeeks">
     
     
    <button onclick="myGeeks()">
        Submit
    </button>
     
    <p id="sudo" style="color:green;font-size:35px;"></p>
     
    <!-- Script to return the hidden value -->
    <script>
        function myGeeks() {
            var x = document.getElementById("GFG").defaultValue;
            document.getElementById("sudo").innerHTML = x;
        }
    </script>
</body>
 
</html>


Output:

  • Before Clicking On Button:

 

  • After Clicking On Button:

 

Example 2: This example illustrates how to set Input hidden defaultValue property. 

html




<!DOCTYPE html>
<html>
     
<head>
    <title>
        HTML Input Hidden defaultvalue Property
    </title>
</head>
 
<body style="text-align:center;">
 
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
     
    <h2>DOM Input Hidden defaultvalue Property</h2>
     
    <input type="hidden" id="GFG"
                value="GeeksForGeeks">
     
     
    <button onclick="myGeeks()">
        Submit
    </button>
     
    <p id="sudo" style="color:green;font-size:35px;"></p>
     
    <!-- Script to return the hidden value -->
    <script>
        function myGeeks() {
            var x = document.getElementById("GFG").defaultValue
                        = "HelloGeeks";
            ;
            document.getElementById("sudo").innerHTML = x;
        }
    </script>
</body>
 
</html>                   


Output:

  • Before Clicking On Button:

 

  • After Clicking On Button:

 

Supported Browsers: The browsers supported by DOM Input Hidden defaultValue property are listed below:

  • Google Chrome 1
  • Edge 12
  • Firefox 1
  • Apple Safari 1
  • Opera 2


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