Interactivity through JavaScript

JavaScript is a programming language that is commonly used in web development. It is used to add interactivity and dynamic behavior to web pages, and to create web applications.

JavaScript code can be added to an HTML document using the <script> element. The <script> element should be placed in the <head> or <body> of the HTML document.

Example:

<!DOCTYPE html>
<html>
  <head>
    <title>My Web Page</title>
  </head>
  <body>
    <h1>My Web Page</h1>
    <p>Welcome to my web page!</p>
    <script>
      // JavaScript code goes here
    </script>
  </body>
</html>

JavaScript code can be used to manipulate the HTML and CSS of a webpage, to respond to user input and events, to communicate with a server using AJAX, and to create interactive and dynamic web applications.

Here are some examples of what you can do with JavaScript:

  • Change the content and style of HTML elements
  • Validate form input
  • Display alerts and prompts
  • Create and control timers
  • Handle events such as mouse clicks and keyboard input
  • Send and receive data from a server using AJAX

JavaScript is an essential part of modern web development, and it is used in many websites and web applications to provide interactive and dynamic functionality.

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