JAVASCRIPT & JQUERY TEST

What is the output of below program.

4 ["X", "B", "C"] {first:false} {first:true} {first:false}
4 ["X", "B", "C"] {first:true } {first:true} {first:false}
4 ["X", "B", "C"] {first:false} {first:false} {first:false}
4 ["X", "B", "C"] {first:false} {first:true} {first:true}

What is the output of below given code.

{ hello:”bar”} undefined
{bar:”hello”} defined
{bar:”hello”} undefined
{bar:hello} undefined

What is the output of below given code.

1234
1432
1324
1243

What is the output of below given code.

01234
02134
01324
01243

What is the output of below given code.

undefined 10
defined 10
Both A&B
None of the above.

Which of the following is the correct output for the following JavaScript code:

Error
1
10
5

Which of the following is the correct output for the following JavaScript code:

9
0
8
Undefined

Which of the following is the correct output for the following JavaScript code:

0
10
6
33

Which of the following is the correct output for the following JavaScript code:

2
3
0
error

Which of the following is the correct output for the following JavaScript code:

10
17
18
0

See the given code of JavaScript and choose the correct output from the following:

Compilation error
False
Runtime error
True

What will be the output of the following JavaScript code?

True
False
Runtime error
Compilation error

Find out the correct output of the following given piece of code from the given options:

Logical error
True
Runtime error
False

Which of the following is the correct output for the following JavaScript code:

True
False
Runtime error
Compilation error

Which one of the following is correct output for the following given JavaScript code:

Error
Undefined
12
20

Which one of the following is correct output for the following given JavaScript code:

Error
Clean:Italy
Clean:india
Undefined

Which one of the following is correct output for the following given JavaScript code:

7
-7.25
25
-7

Which one of the following is correct output for the following given JavaScript code:

972
81
9
Error

Which one of the following is correct output for the following given JavaScript code

01
4
00
047

Which of the following is the correct output for the following JavaScript code:

Prints the numbers in the array in the reverse order
Prints the numbers in the array in specific order
Prints 0 to the length of the array
Prints "Empty Array"

Which one of the following is the possibly correct output for the given JavaScript code?

5
55
555
Error

Which one of the following is the correct output for the given JavaScript code?

133
123
013
01

Which of the following options would be the correct output for the given JavaScript code?

5555
5321
531
531-3-1

Consider the following piece of JavaScript code:

What is the role of the “debugger” statement?

It is kind of keyword which is used to debug the entire program at once
It will do nothing, although it is a breakpoint
It will debug the error in that statement
It will debug the error in that statement

What will be the output of the following JavaScript code?

True 21
true false
False false
True true

Which one of the following is the correct output for the given JavaScript code?

0
1
2
Error

What kind of work is being performed in the following given part of JavaScript’s code?

Object Encapsulation
Object Encoding
Object Abstraction
Object Serialization

What will be the output of the following JavaScript code?

Properties
property name
property values
objects

What will be the output obtained by “shift ()” in the given code of JavaScript?

Exception is thrown
[4,5]
[3,4,5]
5

Which one of the following options is the correct output for the given code of java script?

70
75
482
error

jQuery is a –

JavaScript method
JavaScript library
JSON library
PHP method

Which of the following sign is used as a shortcut for jQuery?

the % sign
the & sign
the $ sign
the @ sign

$(this) in jQuery is used when –

an HTML element references the entire document
an HTML element references its own action
an HTML element references the action of its parent element
All of the above

Which of the following jQuery method is used to hide the selected elements?

The hidden() method
The hide() method
The visible(false) method
The display(none) method

Which of the following jQuery method can be used to deal with the name conflicts?

The conflict() method
The nameConflict() method
The noConflict() method
None of the above

The correct syntax to set the background color of all h1 elements to yellow in jQuery –

$("h1").style("background-color","yellow");
$("h1").html("background-color","yellow");
$("h1").css("background-color","yellow");
$("h1").layout("background-color","yellow");

The jQuery method used to perform an asynchronous HTTP request –

jQuery ajaxSetup() method
jQuery ajaxSync() method
jQuery ajax() method
None of the above

What does the syntax $(“p.para”) will select?

The first paragraph element with class = "para"
The first paragraph element with id = "para"
The first paragraph element with name = "para"
All paragraph elements with class = "para"

The correct syntax for selecting the first paragraph element with id p1 is

$("p.p1:first")
$("p#p1:first")
$("p1#p:first")
None of the above

Which of the following jQuery method is used to check whether or not the selected elements have the specified class name?

hasClass() method
addClass() method
find() method
toggleClass() method

Which of the following jQuery method is used to set the value of an element?

val() method
setValue() method
content() method
None of the above

The jQuery method used to get all ancestors of the matched set of elements is –

parent() method
offsetParent() method
parents() method
None of the above

The jQuery method used for parsing the JSON text is –

parseJSON() method
parseHTML() method
noConflict() method
each() method

What does the syntax $(“div#myDiv .para”) will select?

It will select all elements with class = "para" within the div element with id = "myDiv"
It will select all elements with id = "myDiv" within the div element with class = "para"
All div elements with class = "para" or with id = "myDiv"
None of the above

The :even and :odd filters in jQuery are used to –

determine if the number is odd or even
determine if the index position of an element is odd or even
both (a) & (b)
None of the above

Which of the following is the correct code in jQuery to make all div elements 150px high?

$("div").height(150);
$("div").height = "150" ;
$("div").height = 150 ;
None of the above

The jQuery method used to find all previous sibling elements of the current element is –

nextAll() method
prevAll() method
siblings() method
None of the above

The jQuery method used to load data using HTTP get is –

get(URL, data, callback, dataType) method
post(URL, data, callback, dataType) method
ajax() method
ajaxSend() method

The code $(“p”).css(“background-color”,”yellow”) is equivalent to –

A. jQuery("p").css("background-color","yellow")
document("p").css("background-color","yellow")
jq("p").css("background-color","yellow")
None of the above

Which of the following selector in jQuery is used to select the elements with lesser index value than the value of its index parameter?

jQuery :lt() selector
jQuery :gt() selector
jQuery :lang() selector
jQuery :nth-child selector

JAVASCRIPT & JQUERY TEST

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