HTML DOM Aside Object

Last Updated : 15 Jun, 2023

The DOM Aside Object is used to represent the HTML <Aside> element. The Aside element is accessed by getElementById(). The aside Element is new in HTML 5.

Syntax:

document.getElementById("ID");

where "id" is the ID assigned to the aside tag.

Example 1: In this article, we will learn DOM Aside Object.

HTML

<!DOCTYPE html>
<html>
  
<head>
    <title>HTML DOM Aside Object</title>
    <style>
        .gfg {
            font-size: 30px;
        }
        aside {
            font-size: 40px;
            color: #090;
            font-weight: bold;
        }
        p {
            font-size: 20px;
            margin: 20px 0;
        }
    </style>
</head>
  
<body>
    <!-- Assign ID to the aside tag. -->
    <aside id="GFG">
        <h1>GeeksforGeeks</h1>
        <p>A computer science portal for geeks</p>
    </aside>
    <h2 style="font-size:35px;">DOM Aside object</h2>
    <button onclick="myGeeks()">Submit</button>
    <script>
        function myGeeks() {
           let w = document.getElementById("GFG");
            w.style.color = "red";
        }
    </script>
</body>
  
</html>

Output:

Example 2: Aside Objects can be created by using the document.createElement Method.

HTML

<!DOCTYPE html>
<html>
  
<head>
    <title>HTML DOM Aside Object</title>
    <style>
        .gfg {
            font-size: 30px;
        }
        p {
            font-size: 20px;
            margin: 20px 0;
        }
    </style>
</head>
  
<body>
    <h2 style="font-size:35px;">DOM Aside object</h2>
    <button onclick="myGeeks()">Submit</button>
  
    <script>
        function myGeeks() {
            let w = document.createElement("ASIDE");
            w.setAttribute("id", "GFG");
            document.body.appendChild(w);
          
            let heading = document.createElement("H3");
          
            let text1 =
                document.createTextNode("GeeksForGeeks");
            heading.appendChild(text1);
            document.getElementById("GFG"
            ).appendChild(heading);
          
            let para = document.createElement("P");
          
            let text2 = document.createTextNode(
                "A Computer Science Portal for Geeks.");
            para.appendChild(text2);
            document.getElementById("GFG"
            ).appendChild(para);
        }
    </script>
</body>
  
</html>