What is jQuery?

[lavyhair]

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

[Glendajones]

jQuery is a fast, small, and feature-rich JavaScript collection. It makes things like HTML papers traversal and adjustment, occasion managing, movement, and Ajax incredibly easier with an easy-to-use API that works across a large number of internet explorer.

[Dam Ponting]

jQuery is a quick, little, and highlight rich JavaScript library. It influences things to like HTML report traversal and control, occasion taking care of, movement, and Ajax considerably less complex with a simple to-utilize API that works over a huge number of programs.

[manchun]

Jquery is programming language which is use for action

[EmilyPete]

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

[sithub19]

jQuery is a fast, small, and feature-rich JavaScript object library that marked a significant breakthrough for front-end web development, the programming that goes into building everything a user sees and interacts with on a website.

[rahilsaxena]

jQuery is nothing but javascript library which is used to ease your javascript code. jQuery greatly simplifies JavaScript programming along with easy-to-use API that works across a multitude of browsers which saves time which you would spend on bunch of complicated codes of javascript, like ajax calls,dom manipulation,each loops,etc.
The jQuery syntax is tailor-made for*****selecting*****HTML elements and performing some*****action*****on the element(s).
Basic syntax is:*****$(selector).action()
Examples:
$(this).hide() - hides the current element.
$("p").hide() - hides all <p> elements.
jQuery selectors are one of the most important parts of the jQuery library. jQuery selectors allow you to select and manipulate HTML element(s).
jQuery selectors are used to "find" (or select) HTML elements based on their name, id, classes, types, attributes, values of attributes and much more. All selectors in jQuery start with the dollar sign and parentheses: $().
Example
When a user clicks on a button, all <p> elements will be hidden:
$(document).ready(function(){
*****$("button").click(function(){
*****$("p").hide();
*****});
*****});

Benefits of jQuery are:
-Easy to use
-works across multiple browsers i.e. work on cross browser
-uses simple and powerful syntax
-highly extensible
- Ajax support
-Commands can be “chained” so that the result of one command can then control others.
-Has a “built-in” set of animation applications that can also be used as commands.

[besthomepackers]

JQuery is library which is written on the top of Java Script language. This jQuery library will reduce the developer work.

[softwaretesting]

jQuery is a fast, small, cross-platform and feature-rich JavaScript library. It is designed to simplify the client-side scripting of HTML. It makes things like HTML document traversal and manipulation, animation, event handling, and AJAX very simple with an easy-to-use API that works on a lot of different type of browsers.
The main purpose of jQuery is to provide an easy way to use JavaScript on your website to make it more interactive and attractive. It is also used to add animation.

[Amitkumar]

jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.