In WordPress, jQuery is often used by theme and plugin developers to add custom functionality and interactivity to their designs. For example, jQuery might be used to create drop-down menus, sliders, lightboxes, or other interactive elements on a WordPress site. WordPress itself also uses jQuery for various purposes, such as handling AJAX requests, managing the Media Library, and more.
To use jQuery in WordPress, you typically need to enqueue it in your theme or plugin files, using the built-in wp_enqueue_script() function. This ensures that jQuery is loaded properly and doesn’t conflict with other scripts on your site. There are also many jQuery plugins and libraries available for WordPress, which can be installed and used in the same way as any other WordPress plugin.
Overall, jQuery is an important part of the WordPress ecosystem, as it provides a powerful and flexible tool for creating dynamic and interactive web pages, and enables developers to add custom functionality and features to their WordPress designs with ease.