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HTML | DOM Input URL defaultValue Property
  • Difficulty Level : Basic
  • Last Updated : 16 Oct, 2020

The DOM Input URL defaultValue Property in HTML DOM is used to set or return the default value of the URL 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 URL field has been changed or not.

Syntax:

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

Property Values: It contains a single property value which defines the default value for URL field.

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

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






<!DOCTYPE html>
<html>
  
<head>
    <title>
        DOM Input URL defaultValue Property
    </title>
</head>
  
<body>
    <center>
        <h1 style="color:green;"
                GeeksForGeeks 
            </h1>
  
        <h2>
          DOM Input URL defaultValue Property
      </h2>
  
        <label for="uname"
               style="color:green">
      </label>
  
            <form id="geeks">
                <input type="url"
                       id="gfg"
                       placeholder="Enter URL" 
                       size="20" 
                       value="GeeksForGeeks" 
                       pattern="https?://.+"
                       title="Include http://"
                       maxlength="20">
            </form>
            <br>
            <br>
  
            <button type="button"
                    onclick="geeks()">
                Click
            </button>
  
            <p id="GFG" 
               style="color:green;font-size:25px;">
          </p>
  
            <script>
                function geeks() {
                    
                    var link = 
                        document.getElementById(
                          "gfg").defaultValue;
                    
                    document.getElementById(
                      "GFG").innerHTML = link;
                }
            </script>
    </center>
</body>
  
</html>

Output:
Before Clicking On Button:

After Clicking On Button:

Example-2: This Example that illustrates how to set the Property.




<!DOCTYPE html>
<html>
  
<head>
    <title>
        DOM Input URL defaultValue Property
    </title>
</head>
  
<body>
    <center>
        <h1 style="color:green;"
                GeeksForGeeks 
            </h1>
  
        <h2>
          DOM Input URL defaultValue Property
      </h2>
  
        <label for="uname"
               style="color:green">
      </label>
  
            <form id="geeks">
                <input type="url"
                       id="gfg" 
                       placeholder="Enter URL"
                       size="20" 
                       value="GeeksForGeeks" 
                       pattern="https?://.+"
                       title="Include http://"
                       maxlength="20">
            </form>
            <br>
            <br>
  
            <button type="button"
                    onclick="geeks()">
                Click
            </button>
  
            <p id="GFG"
               style="color:green;
                      font-size:25px;">
          </p>
  
            <script>
                function geeks() {
                    
                  var link = 
                    document.getElementById(
                     "gfg").defaultValue = "finecomb";
                    
                    document.getElementById(
                      "GFG").innerHTML = 
                      "The defaultvalue was changed to "
                    + link;
                }
            </script>
    </center>
</body>
  
</html>

Output:
Before Clicking On Button:

After Clicking On Button:

Supported Browsers: The browsers supported by DOM input URL defaultValue property are listed below:

  • Google Chrome
  • Internet Explorer 10.0 +
  • Firefox
  • Opera
  • Safari



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