JQuery Programmer Interview Preparation Guide
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JQuery Programmer Frequently Asked Questions in various JQuery Developer job Interviews by interviewer. The set of questions here ensures that you offer a perfect answer posed to you. So get preparation for your new job hunting

201 JQuery Programmer Questions and Answers:

1 :: Explain what is jQuery?

jQuery is a fast and concise JavaScript Library created by John Resig in 2006 with a nice motto - Write less, do more. jQuery simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is a JavaScript toolkit designed to simplify various tasks by writing less code.
jQuery is not a programming language but a well written JavaScript code. It is a JavaScript code, which do document traversing, event handling, Ajax interactions and Animations.

2 :: In what scenarios jQuery can be used?

jQuery can be used in following scenarios:

☛ Apply CSS static or dynamic
☛ Calling functions on events
☛ Manipulation purpose
☛ Mainly for Animation effects

3 :: Tell me what is jQuery connect?

A 'jQuery connect' is a plugin used to connect or bind a function with another function. Connect is used to execute function from any other function or plugin is executed.

4 :: How to use connect?

Connect can be used by downloading jQuery connect file from jQuery.com and then include that file in the HTML file. Use $.connect function to connect a function to another function.

5 :: What are the basic selectors in jQuery?

Following are the basic selectors in jQuery:

► Element ID
► CSS Name
► Tag Name
► DOM hierarchy

6 :: What is the use of jQuery load method?

jQuery load method is a powerful AJAX method which is used to load the data from a server and assign the data into the element without loading the page.

7 :: What is CDN?

CDN is abbreviated as Content Distribution network and it is said to be a group of companies in different location with network containing copies of data files to maximize bandwidth in accessing the data.

8 :: How can we debug jQuery?

There are two ways to debug jQuery:

Debugger keyword

► Add the debugger to the line from where we have to start debugging and then run Visual Studio in Debug mode with F5 function key.
► Insert a break point after attaching the process

9 :: What is the use of jQuery.data() method?

jQuery data method is used to associate data with DOM nodes and JavaScript objects. This method will make a code very concise and neat.

10 :: Why jQuery is better than JavaScript?

jQuery is a library used for developing Ajax application and it helps to write the code clean and concise. It also handles events, animation and Ajax support applications.