jQuery is a JavaScript library that simplifies common tasks like manipulating page elements, handling events, and creating animations — all with considerably less code than writing raw JavaScript directly. It was enormously popular through the 2010s, and it's still deeply embedded throughout the WordPress ecosystem today.
What jQuery Simplifies
- Selecting and modifying HTML elements with minimal code
- Handling events like clicks, hovers, and form submissions
- Creating animations and visual transitions easily
- Making AJAX requests, updating page content without a full reload
jQuery's Role in WordPress
WordPress ships with jQuery included by default, and a very large share of plugins and themes still rely on it for their interactive functionality — sliders, popups, and dynamic forms among them. This deep reliance is a big part of why jQuery hasn't disappeared, even as newer JavaScript approaches have become more fashionable elsewhere on the web.
Is jQuery Still Relevant
Modern JavaScript frameworks like React and Vue have largely replaced jQuery for building genuinely new web applications, but within the WordPress world specifically, it remains deeply relevant — so much existing plugin and theme code depends on it that it isn't disappearing from WordPress any time soon.
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