jQuery is a fast, lightweight, and easy-to-use JavaScript library created to simplify client-side web development.
It allows developers to write less code and perform common JavaScript tasks more easily, such as selecting HTML elements, handling events, creating animations, and working with AJAX.
jQuery was designed to reduce the complexity of writing pure JavaScript. Before jQuery, developers had to write long and complicated code for simple tasks.
With jQuery, the same work can be done using short and readable code, which increases development speed and reduces errors.
In the above example, the dollar symbol ($) represents jQuery.
The document.ready() function ensures that the HTML page is fully loaded before executing any jQuery code. This is one of the most important concepts in jQuery.
This code selects all paragraph elements on the page and changes their text color to blue.
jQuery uses simple selectors similar to CSS, which makes it easy to learn for beginners.
Important Notes:
- jQuery is a JavaScript library, not a separate language
- It works on top of JavaScript
- jQuery code is shorter and easier to read
- Basic knowledge of HTML and JavaScript is helpful