HTML JavaScript
In the context of web development, "HTML" and "JavaScript" are two distinct but closely related technologies that are often used together to create dynamic and interactive web pages.
The HTML <script> Tag
The <tscript> tag in HTML is used to embed or reference JavaScript code within an HTML document. This tag allows developers to include client-side JavaScript directly within the HTML file or link to an external JavaScript file. The <script> tag is essential for adding interactivity, dynamic behavior, and functionality to web pages.
Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content. To select an HTML element, JavaScript most often uses the document.getElementById() method. This JavaScript example writes "Hello JavaScript!" into an HTML element with id="demo":
A Taste of JavaScript
Here are some examples of what JavaScript can do:
The HTML <noscript> Tag
The <noscript> tag in HTML is used to provide alternative content that should be displayed when a browser does not support or has disabled JavaScript. The content within the <noscript>. tag is intended for situations where JavaScript is either not available or disabled in the user's browser.