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HTML | DOM Subscript Object
  • Last Updated : 22 Jan, 2019

The Subscript Object in HTML DOM is used to represent the HTML <sub> element. The subscript element can be accessed by using getElementById() method.

Syntax:

document.getElementById("id")

Where id is assigned to the <sub> tag.

Example 1:




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


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



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




<!DOCTYPE html> 
<html
    <head>
        <title>
            HTML DOM subscript Object
        </title>
    </head>
      
    <body
        <center>
        <h1 style = "color:green;"
            GeeksForGeeks 
        </h1
          
        <h2>DOM subscript Object</h2
  
        <button onclick = "Geeks()">
            Click Here!
        </button>
          
        <br><br>
          
        <div>
            A <span id = "p"></span>
            portal for geeks.
        </div>
          
        <script>
            function Geeks() {
            var txt = document.createElement("SUB");
            var t = document.createTextNode("computer science");
            txt.appendChild(t);
            document.getElementById("p").appendChild(txt);
            }
        </script>
    </body
</html>                    


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

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