What is javascript?

JavaScript is the most popular programming language that is most commonly used for client-side web development. It is a scripting language and lightweight programming language. It is easy to learn and it provides easy way to get, delete, copy HTML elements. Here is the example of the JavaScript

 <div id="divHello"></div>

 <script type="text/javascript">

        var item = document.getElementById("divHello");
        item.innerHTML = "Hello World!";

 </script>

Add the following code in the HTML page and write the javascript code inside the script tag <script type="text/javascript">