In the world of web development, using script tags is very important because it allows us to execute JavaScript code on our HTML pages. This kind of interaction helps websites become more dynamic and provides a better user experience. In this article, we aim to explore the concept and usage of script tags in HTML in more detail and explain the correct way to use them.
The <script> tag is one of the most important tags in HTML that allows you to add JavaScript code to the web page itself. This code can be internal, external, or even imported from libraries. Ways that can utilize the <script> tag provide you with more controls and management of scripts on your websites.
When you need to dynamically update the content of the web page, the <script> tag can help you. For example, you can modify user data, make changes to it on the page, or even use JavaScript libraries like React and Angular. The uses of this tag are very extensive and diverse.
One point that you should consider is that the location of the <script> tag in the HTML document can affect how the code executes. Usually, it's better to place this tag at the bottom of the page and before closing the </body> tag so that the page loads correctly and provides a good user experience.
<html>
<head>
<title>Sample Page</title>
</head>
<body>
<h2>Welcome to My Website</h2>
<p>This is a paragraph.</p>
<script>
alert('Hello, World!');
</script>
</body>
</html>
Line-by-Line Explanation of the Code
<html>: This tag marks the beginning of the HTML document that encapsulates all content of the web page.
<head>: This tag contains metadata, links to CSS files, and the title of the page.
<title>: This tag defines the title of the page, which appears on the tab of the browser.
<body>: This tag includes the main content of the web page that users see.
<h2>: This tag is used for subheadings and here serves as a welcome title for the website.
<p>: This tag is used for a paragraph of text.
<script>: This tag is a simple JavaScript instruction to display an alert message when the page loads.