<ul><li>JSTL <c:forEach> loop is used for iterating over lists of data in JSP pages.</li><li>To capture the index of each element, varStatus attribute is used in conjunction with <c:forEach> loop.</li><li>A CategoryServlet is created to set a list of categories in HttpServletRequest and forward the request to JSP.</li><li>In the JSP page, <c:forEach> is utilized to display categories and pass the index to a JavaScript function.</li><li>The JavaScript function getCategoryIndex(index) alerts the index of the clicked category.</li><li>Special properties like index, count, first, last, and size are accessed using varStatus in <c:forEach>.</li><li><c:forEach> loop simplifies dynamic data handling and enhances web application interactivity.</li><li>By deploying the application and accessing the /categories URL, the categories list is displayed.</li><li>Clicking on a category link triggers the JavaScript function displaying the index of the clicked category.</li><li>This approach of using JSTL forEach index values improves client-side interaction based on element indexes.</li></ul>

JSTL forEach Index Values Example

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