HTML scripting refers to the process of using JavaScript code within an HTML document to add interactivity and dynamic functionality. JavaScript, a popular programming language, allows developers to manipulate the content and behavior of a webpage, enhancing user experience and making websites more dynamic.
What is JavaScript?
JavaScript is a versatile scripting language that enables developers to create interactive web pages. It is often used in conjunction with HTML and CSS to enhance the functionality and interactivity of a website. JavaScript allows developers to perform various tasks such as validating form inputs, creating animations, modifying page content dynamically, and handling events.
Why Use HTML Scripting?
HTML alone provides the structure and layout for web pages but lacks interactivity. By incorporating JavaScript into HTML documents, developers can make their websites more engaging by adding various features. These features can include image sliders, form validation, user input verification, dynamic content updates without page reloads, responsive menus, and much more.
How to Add JavaScript Code in HTML
To add JavaScript code in an HTML document, you can either use inline scripts or external script files.
Inline Scripts
Inline scripts are written directly within the HTML document using the tags. Here’s an example:
<p>Hello World!</p>
<script>
var greeting = "Hello!";
var name = "John Doe";
alert(greeting + " " + name);
</script>In this example, a simple greeting message pops up with an alert box when the page loads.
External Script Files
Instead of including JavaScript code directly within the HTML document, you can also link external script files using the tag. This approach allows you to separate your HTML and JavaScript code for better organization and reusability. Here’s an example:
<p>Hello World!</p>
<script src="script.js"></script>In this example, the JavaScript code is contained in a separate file named “script.js.” The browser will fetch and execute the script file when it encounters the