Can JavaScript be used on a JSP page?

Yes, JavaScript can be used on a JSP page.

There are two main ways to do this:

Embedding directly into HTML: JavaScript code can be placed between <script> tags within the JSP page, similar to how it is done in regular HTML files.
```
// Example of embedding JavaScript on a JSP page
alert("Hello from JavaScript on JSP!");
```
Linking external JavaScript files: You can create separate .js files with JavaScript code and include them in the JSP page using the <script> tag with the src attribute. This is the recommended approach for better code organization.
```
// Example of linking an external JavaScript file on a JSP page
// Assuming the file script.js is located in the appropriate directory
```

Using JavaScript on JSP pages allows implementing an interactive and dynamic user interface, handling client-side events, and performing asynchronous requests to the server (for example, using AJAX).

Important note: JavaScript execution occurs on the client side (in the user's browser), while JSP code runs on the server to generate HTML content. JavaScript has access to DOM elements that are formed as a result of JSP processing.