HTML script Tag
The HTML <script> tag is used to embed or reference external JavaScript code within an HTML document. It allows you to include JavaScript code directly within your HTML file or link to an external JavaScript file.
Here’s an example of how the <script> tag can be used:
<script>
// Inline JavaScript code
alert('Hello, World!');
</script>
<script src="script.js"></script>In the above example, the first <script> tag contains inline JavaScript code, where the alert() function displays a pop-up message with the text “Hello, World!”.
The second <script> tag references an external JavaScript file called “script.js” using the src attribute. This allows you to keep your JavaScript code separate from your HTML file and organize your code into separate files.
The <script> tag can be placed in the <head> or <body> section of an HTML document. When placed in the <head>, it’s recommended to use the defer attribute, which ensures that the script is executed after the HTML content is parsed. Alternatively, you can place the <script> tag at the end of the <body> to ensure the HTML content is loaded before the JavaScript code runs.
The <script> tag is essential for adding dynamic behavior and interactivity to web pages using JavaScript. It allows you to manipulate the HTML content, handle events, make AJAX requests, and perform various other client-side operations.
It’s important to note that modern best practices often recommend placing JavaScript code in separate external files rather than using inline code. This promotes code reusability, maintainability, and separation of concerns.