Answer:- jQuery is not a programming language; instead, we can say it is a cross-platform JavaScript library. There are many JavaScript libraries available such as MooTools, Knockout, or Angular, and jQuery is one of the most popular among them.

Answer:- We can say that jQuery is a library of JavaScript files, and it contains DOM event effects and Ajax functions.

Answer:- No, the jQuery HTML works only for HTML documents, and not for XML Documents.

Answer:- JavaScript: • JavaScript is a language for programming. • Here, we have to write an extra code or move around to have cross-browser compatibility. • It is verbose as one has to write own scripting code, which is often time-consuming. jQuery: • It is a JavaScript library, a framework that will help us to use JavaScript to simplify common web tasks. • It has an inbuilt feature of cross-browser compatibility. • It is concise, and there is no need to write much code as scripting already exists.

Answer:- Since jQuery is only a library of JavaScript, it cannot replace JavaScript. All the jQuery code is JavaScript, but jQuery does not include all the JavaScript code. jQuery is only optimized to do common scripting functions with lesser lines of code.

Answer:- • empty(): It removes all the content and the child elements from the selected element. This method will not remove the selected elements. • detach(): It removes all child elements with the selected elements. However, it keeps all the data and the event handlers of the removed elements. This method is only preferred when we want to remove elements but to keep a copy of the removed elements, which can be reused later. • remove(): It removes all child elements with the selected element. In this method, one can restore all the data but not the event handlers of the removed elements from DOM. All data and events related to elements will be removed.

Answer:- 1. It improves the performance of an application. 2. It will facilitate you to write minimal lines of code for the UI-related functions. 3. jQuery is very easy to learn and use. 4. It is very fast and extensible. 5. It provides cross-browser support.

Answer:- The CSS() method in jQuery is used to set or return one or more style properties for selected elements. When it is used to return the properties: This method will return the specified CSS property value of FIRST matched elements.

Answer:- In JS, $ is commonly used as a selector function. In jQuery, the $ function does more than just select things, though. One can pass it to a selector to get the collection of matched elements from the DOM. One can pass it as a string of HTML to turn into the DOM element, which can then inject into the document.

Answer:- In jQuery, the events are the actions that are detected by the web application. They are mainly used to create dynamic web pages. An event will show the exact moment when something happens—examples of events: A mouse click.

Answer:- 1. Linux 2. Windows 3. Mac

Answer:- The toggle() method in jQuery attaches two or multiple functions to toggle between for the click event for selected elements. When we click on an element, the first specified function fires, next when we click again, the second function fires, and so on.

Answer:- The length property of the jQuery is used to count the number of elements present in the jQuery object. The size() function will also return the number of elements in the jQuery object.

Answer:- 1. First, download the jQuery library from jQuery.com. 2. Include that reference on the asp.net page.