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HTML DOM tagName Property

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  • Last Updated : 10 Aug, 2022

The DOM tagName Property is used to return the tagname of the Element. It is read-only property and used to display the returned value of tagName in UPPERCASE letters. 



Return Value: It returns a string value which represent the tagName of the element in UPPERCASE letters. 



<!DOCTYPE html>
        h1 {
            color: green;
            font-size: 35px;
        <h2 id="GFG">DOM tagName Property</h2>
            <button onclick="Geeks()">Submit</button>
            <p id="sudo"></p>
                function Geeks() {
                    var w = document.getElementById("GFG").tagName;
                    document.getElementById("sudo").innerHTML = w;


Before clicking on the button:


After clicking on the button:


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

  • Google Chrome 1
  • Edge 12
  • Internet Explorer 5
  • Firefox 1
  • Opera 8
  • Safari 1
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