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“jQuery Interview Questions and Answers guide is a simple way to learn jQuery. Here you will learn that jQuery is a fast, brief and smallest JavaScript Library that simplifies our HTML document traversing, its event handling, its animation, and Ajax interactions with application for rapid web development. jQuery is designed for the enhancement of JavaScript and AJAX. This jQuery Tutorial and Interview Questions and Answers will guide all of us that jQuery is a lightweight JavaScript library.”

91 JQuery Questions And Answers

21⟩ Explain the concepts of "$ function" in jQuery with an example?

The type of a function is "function".

There are a lot of anonymous functions is jquery.

$(document).ready(function() {});

$("a").click(function() {});

$.ajax({

url: "someurl.php",

success: function() {}

});

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22⟩ Why is jQuery better than JavaScript?

* jQuery is great library for developing ajax based application.

* It helps the programmers to keep code simple and concise and reusable.

* jQuery library simplifies the process of traversal of HTML DOM tree.

* jQuery can also handle events, perform animation, and add the Ajax support in web applications.

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23⟩ Explain how jQuery Works?

<html>

<head>

// You can write the code here

</script>

</head>

<body>

<a href="http://www.rendc.org/">Global GuideLine</a>

</body>

</html>

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24⟩ When can you use jQuery?

JQuery can be used to

apply CSS

call functions on events

traverse the documents

manipulation purpose and

to add effects too.

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25⟩ Advantages of jQuery.

The advantages of using jQuery are:

* JavaScript enhancement without the overhead of learning new syntax

* Ability to keep the code simple, clear, readable and reusable

* Eradication of the requirement of writing repetitious and complex loops and DOM scripting library calls

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26⟩ How to programmatically trigger a click event that's being handled by jQuery?

We can fire or trigger any click event programmatically by using below methods.

jQuery('#YourElementID').trigger('click');

$('#YourElementID').trigger('click');

jQuery("#YourElementID").click();

$("#YourElementID").click();

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27⟩ How to scroll smothly to a div using jquery?

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28⟩ How to print some thing on console using jquery?

var mydiv = $("#divid").html();

console.log(mydiv);

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29⟩ Explain the difference between jQuery's ready and holdReady?

jQuery's ready is an event which gets triggered automatically when DOM is ready while holdReady is a signal/flag to hold this triggering. holdReady was included in 1.6 version and it works only if used before the execution/triggering of ready event. Once ready event is fired, it has nothing to do. It is useful in dynamically loading scripts before the ready starts. It release ready event execution when used with a true parameter.

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30⟩ What are the paremeter of Jquery ajax method?

★ url

★ type

★ data

★ cache

★ beforeSend(xhr)

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31⟩ Define Jquery $.ajax() method?

The Jquery ajax() method is used to perform an AJAX (asynchronous HTTP) request.

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32⟩ Define url paremeter of Jquery ajax method?

Specifies the URL to send the request to. Default is the current page.

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33⟩ Define type paremeter of Jquery ajax method?

Specifies the type of request. (GET or POST)

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34⟩ Define cache paremeter of Jquery ajax method?

A Boolean value indicating whether the browser should cache the requested pages. Default is true.

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35⟩ Define "beforeSend(xhr)" paremeter of Jquery ajax method?

A function to run before the request is sent.

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36⟩ Define data paremeter of Jquery ajax method?

Specifies data to be sent to the server.

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37⟩ When can JQuery be used?

JQuery can be used to perform:

1) Call methods on specific events

2) Traverse the documents

3) For apply CSS

4) Manipulation purpose and

5) To add effects too.

6) For apply animations

7) For give atractive look (dialogbox etc)

8) For asynchronous calls ($.ajax())

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38⟩ What is the use of noConflict() method in Jquery?

Please share your answers.

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39⟩ Tell me how to select combobox select value and text using Jquery?

Example:

var StateID = $("#StateCbx").val(); // Or you can use it $("#iStateID").val();

var StateName = $("#StateCbx option:selected").text();

alert("Selected combobox text is= " + StateName + " and value is= " + StateID);

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40⟩ Can we call C# codebehind method using Jquery?

Yes.

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jQuery

Home World Wide Web jQuery

91 JQuery Questions And Answers

21⟩ Explain the concepts of "$ function" in jQuery with an example?

22⟩ Why is jQuery better than JavaScript?

23⟩ Explain how jQuery Works?

24⟩ When can you use jQuery?

25⟩ Advantages of jQuery.

26⟩ How to programmatically trigger a click event that's being handled by jQuery?

27⟩ How to scroll smothly to a div using jquery?

28⟩ How to print some thing on console using jquery?

29⟩ Explain the difference between jQuery's ready and holdReady?

30⟩ What are the paremeter of Jquery ajax method?

31⟩ Define Jquery $.ajax() method?

32⟩ Define url paremeter of Jquery ajax method?

33⟩ Define type paremeter of Jquery ajax method?

34⟩ Define cache paremeter of Jquery ajax method?

35⟩ Define "beforeSend(xhr)" paremeter of Jquery ajax method?

36⟩ Define data paremeter of Jquery ajax method?

37⟩ When can JQuery be used?

38⟩ What is the use of noConflict() method in Jquery?

39⟩ Tell me how to select combobox select value and text using Jquery?

40⟩ Can we call C# codebehind method using Jquery?

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