HTML | DOM specified Property

Last Updated : 23 Jul, 2019

The DOM specified property is used to return the boolean value. It returns true if the element has a specified attribute, otherwise, it returns a false value if the element does not have a specific attribute.

Syntax:

attribute.specified

Return value: It returns the boolean value which represent the specific attribute is attached to an element or not.

Example:

<!DOCTYPE html>
<html>
    <head>
        <title>
            HTML DOM specified Property
        </title>
    </head>
      
    <body>
        <center>
            <h1 style = "color:green">
                GeeksForGeeks
            </h1>
              
            <h2>DOM specified Property </h2>
              
            <button onclick="Geeks()">
                Submit
            </button>
              
            <p id="sudo"></p>
              
            <script>
                function Geeks() {
                    var x = 
                        document.getElementsByTagName("P")[0];
                    var w = 
                        x.getAttributeNode("ID").specified;
                    document.getElementById("sudo").innerHTML =
                        w;
                }
            </script>
        </center>
    </body>
</html>                    

Output:
Before click on the button:

After click on the button:

Supported Browsers: The browser supported by DOM specified property are listed below:

Google Chrome
Internet Explorer
Firefox
Opera
Safari

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HTML | DOM specified Property