jQuery Interview Question and Answers

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1) What is jQuery?

2) Is jQuery a programming language?

3) What is the difference between JavaScript and jQuery?

4) Is jQuery replacement of JavaScript?

5) Why do we use jQuery?

6) What is $() in jQuery library?

7) What are the effects methods used in jQuery?

8) What is the use of toggle() method in JQuery?

9) What is the purpose of fadeToggle() method in JQuery?

10) What is the use of delay() method in JQuery?

11) Is it possible that jQuery HTML work for both HTML and XML document?

12) What is the use of html() method in JQuery?

13) What is the use of css() method in JQuery?

14) Is jQuery library used for server scripting or client scripting?
15) Is jQuery a W3C standard?

16) What is the starting point of code execution in jQuery?

17) What is the basic requirement to start with the jQuery?

18) Can you use any other name in place of $ (dollar sign) in jQuery?

19) Can you use multiple document.ready() function on the same page?

20) What is the difference between find and children methods?

21) What is a CDN?

22) What is the goal of CDN and what are the advantages of using CDN?

23) How can you use a jQuery library in your project?

24) What are the selectors in jQuery? How many types of selectors in jQuery?

25) What is a use of jQuery filter?

26) What are the different types of selectors in jQuery?

27) What is the difference between the ID selector and class selector in jQuery?

28) What is the use of serialize() method in JQuery?

29) What is the use of val() method in JQuery?

30) How to add and remove CSS classes to an element using jQuery?

31) Can you write a jQuery code to select all links inside the paragraph?

32) What is the difference between prop and attr?

33) What are the two types of CDNs?

34) What is the use of the animate() method in jQuery?

35) How can you disable jQuery animation?

Top Interview Questions and Answers of JQuery.

It is a tiny JavaScript library used for web development and provides an entertaining experience of the web. jQuery is one of the most popular JavaScript libraries. jQuery Interview Questions will provide you with in-depth knowledge and help you prepare for your interviews.

Q1. Mention the Differences between JavaScript and jQuery.


JavaScript

jQuery


It is a weakly typed, dynamic programming language

jQuery is a Concise and fast JavaScript library


It is an interpreted language

It uses resources of JavaScript to make tasks simpler and easier


You need to write your own script and it can be a time-consuming process

You only have to write existing JQuery scripts so it saves time


Don’t need to add any additional plugins as all browsers support JavaScript

You may have to include jQuery library URL in the header of the page


Too many lines of Code

Fewer lines of Code



Q2. What is jQuery?

jQuery is an efficient & fast JavaScript Library created by John Resig in 2006. The motto of jQuery is – write less, do more. It is designed to simplify the client-side scripting of HTML. The main purpose of jQuery is to provide an easy way to use JavaScript on your website to make it more interactive and attractive.