HTML | DOM Underline Object

The DOM underline object is used to represent the HTML <u> element. The underline element is accessed by getElementById().

Syntax:

document.getElementById("id"); 

Where ‘id’ is the ID assigned to the <u> tag.



Example 1:

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<!DOCTYPE html> 
<html
    <head>
        <title>
            HTML DOM underline Object
        </title>
    </head>
      
    <body style = "text-align:center;"
      
        <h1 style = "color:green;"
            GeeksForGeeks 
        </h1
          
        <h2>DOM underline Object</h2
  
        <p><u id = "u">GeeksforGeeks!</u> A computer
        science portal for geeks.</p>
          
        <button onclick = "Geeks()">
            Click Here!
        </button>
          
        <script>
            function Geeks() {
                var txt = document.getElementById("u");
                txt.style.color = "green";
            }
        </script>
    </body
</html>                    

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Output:
Before click on the button:
underline
After click on the button:
underline

Example 2: Underline Object can be created by using the document.createElement method.

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<!DOCTYPE html> 
<html
    <head>
        <title>
            HTML DOM underline Object
        </title>
    </head>
      
    <body style = "text-align:center">
           
        <h1 style = "color:green;"
            GeeksForGeeks 
        </h1
          
        <h2>DOM underline Object</h2
  
        <button onclick = "Geeks()">
            Click Here!
        </button>
          
        <p id = "p"></p>
          
        <script>
            function Geeks() {
                var txt = document.createElement("U");
                var t = document.createTextNode("An underlined text.");
                txt.appendChild(t);
                document.getElementById("p").appendChild(txt);
            }
        </script>
    </body
</html>                    

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Output:
Before click on the button:
underline
After click on the button:
underline



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