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HTML | DOM Subscript Object

  • Last Updated : 30 Jun, 2021

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:  

html




<!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.  

html




<!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

Supported Browsers:

  • Opera
  • Internet Explorer
  • Google Chrome
  • Firefox
  • Apple Safari

 

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