JavaScript is a powerful programing language that can add interactivity and dynamic behavior to web pages. if you’re building a website, you want to add JavaScript to your HTML pages to create a more engaging user experience. in this blog post, we will discuss several ways to add JavaScript to HTML.
- Inline Scripting
- External Scripting
1. Inline Scripting:
This method involves adding the JavaScript code directly into the HTML file using the “<script>” tag. For example
<html>
<head>
<title>My Web Page</title>
</head>
<body>
<h1>Hello World!</h1>
<script>
// JavaScript code goes here
console.log("Hello World!");
</script>
</body>
</html>
While inline scripting is easiest way to add JavaScript to HTML, it’s not recommended for larger projects it can clutter your HTML code and make it harder to maintain
When you add a <script> tag to your HTML, the browser will stop rendering the page until the JavaScript code has finished loading and executing. This means that if you place the <script> tag at the top of your HTML file, it will delay the rendering of the entire page, resulting in slower loading times.
To improve page performance, it’s recommended to place the <script> tag at the bottom of your HTML file, just before the closing </body> tag. This allows the browser to render the page first and then load and execute the JavaScript code.
External Scripting
A better way to add JavaScript to HTML is by using external scripting. this involves creating a separate JavaScript file and linking it to the HTML file using the ‘<script>’ tag. For example:
<html>
<head>
<title>My Web Page</title>
</head>
<body>
<h1>Hello World!</h1>
<script src="script.js"></script>
</body>
</html>
In this example we created file called ‘script.js’ which contain our JavaScript code. We linked the file to our HTML page using the ‘<script>’ tag with a ‘src’ attribute that points to the file’s location.
Using external scripting has several advantages.
It separates your JavaScript code from your HTML, making it easier to manage and update.
It also allows you to reuse your javaScript code across multiple pages.