jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, and animation much simpler with an easy-to-use API that works across a multitude of browsers. It’s designed to change the way that you write JavaScript.


The phonetics for the keyword ‘jQuery’ can be written as: jay-kwuh-ree.

Key Takeaways

  1. jQuery is a fast, small, and feature-rich JavaScript library. It simplifies tasks like HTML document traversal, animation, event handling, and Ajax with an easy-to-use API that works across different browsers.
  2. It enhances the functionality of JavaScript by providing a more intuitive and versatile syntax. This makes it easier and quicker for developers to create interactive web applications without dealing with the complexities of JavaScript programming.
  3. Although the rise of modern JavaScript frameworks like Angular, React and Vue.js has led to a decrease in the use of jQuery, it still remains popular due to its simplicity, wide usage and accessibility for beginners in web development.


jQuery is important in technology terms as it is a fast, small, and feature-rich JavaScript library that simplifies the interaction between HTML and JavaScript. jQuery brings much-needed consistency and ease-of-use to tasks such as HTML document manipulation, event handling, animation, and AJAX, thereby greatly streamlining web development processes. It allows developers to write less code while accomplishing more, because jQuery handles a lot of the complex, repetitive tasks. Besides, it also ensures that the scripts run seamlessly across different browsers. Thus, jQuery’s importance lies in its capacity to enhance efficiency, cross-browser compatibility, and user experience in web development.


jQuery is a fast, small, and feature-rich JavaScript library that is utilized to simplify the way in which you traverse HTML documents, handle events, create animations, and perform Ajax interactions. What sets jQuery apart and gives it a wide appeal is its powerful simplicity and ease of use, making the process of coding more efficient, and tasks that require multiple lines of JavaScript code could be wrapped into methods that can be called with a single line of jQuery.At the core of its use, jQuery is all about enhancing the user experience on a website. From a developer’s perspective, jQuery aids in streamlining complex coding processes into more manageable tasks, which ultimately boosts productivity and efficiency. It is used to create features on websites such as carousels, lightboxes or any other web content that requires dynamic interaction. jQuery’s Ajax capabilities make it an ideal choice in developing web applications that require real-time activities such as chat, updates, or interactive data manipulation, making it a crucial part of modern web design and development.


1. **Netflix**: The popular streaming service, Netflix, uses jQuery in their platform. It helps to enhance the user experience with features like multi-level menus, slide shows, form validation and other interactive elements on the website. 2. **Google**: Google also utilizes jQuery. It is used to make its search engine bar and various other functions more interactive, facilitating Ajax handling, adding animation effects, simplifying HTML document traversing, and event handling among others.3. **IBM**: IBM uses jQuery for various web development projects. It enhances the interactive features of IBM’s website, including drop-down menus, form submission, image sliders, and transitions. Using jQuery helps IBM’s web application interfaces to be more user-friendly and responsive.

Frequently Asked Questions(FAQ)

Q: What is jQuery?A: jQuery is a compact, feature-rich JavaScript library. It was created to facilitate tasks like HTML document traversal, animation, event handling, and Ajax, using a straightforward API that functions across multiple browsers.Q: Who developed jQuery?A: jQuery was developed by John Resig, a programmer and entrepreneur, and was first released in January 2006.Q: What are some features of jQuery?A: jQuery includes features such as easy DOM manipulation, event handling, CSS manipulation, effects and animations, as well as utilities function libraries and easy-to-use AJAX support.Q: Is jQuery still relevant in 2021?A: Yes, jQuery is still relevant despite the rise of other JavaScript frameworks and libraries. However, its use has declined as more powerful and flexible tools like React.js and Vue.js have emerged.Q: What programming language is jQuery written in?A: jQuery is written in JavaScript. It’s essentially a library that provides a simpler and more convenient interface for interacting with web browsers’ JavaScript functionality. Q: Between pure JavaScript and jQuery, which one should I learn first?A: It is recommended to learn JavaScript first. Understanding JavaScript principles, syntax, and functionalities provides a good foundation for understanding how jQuery simplifies certain tasks.Q: Do I need to install jQuery to use it?A: Not necessarily. In general, you can include jQuery in your project by downloading it and hosting it on your server, or by including it from a CDN (Content Delivery Network) such as Google or Microsoft.Q: What is the difference between jQuery and jQuery UI?A: jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating, and Ajax interactions. jQuery UI, on the other hand, is a set of user interface interactions, effects, widgets, and themes built on top of the jQuery library. Q: What is jQuery Mobile?A: jQuery Mobile is a touch-optimized HTML5 UI framework designed to make responsive web sites and apps that are accessible on all smartphones, tablets, and desktop devices.Q: What is a jQuery plugin?A: A jQuery plugin is a piece of code that adds certain functionalities or features to the jQuery library. These plugins extend the capabilities of the jQuery library, making it simpler and easier to execute complex tasks.

Related Tech Terms

  • Ajax
  • JavaScript
  • DOM (Document Object Model)
  • CSS (Cascading Style Sheets)
  • Front-end development

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