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What is the correct answer?

4

What will be the output of the following Javascript code?
<script>
var x = 5;
var y = 2;
var z = x % y;
document.getElementById("demo").innerHTML = z;
</script>


A. 0

B. 1

C. 2

D. 5

Correct Answer :

B. 1


Explanation: The % operator returns the remainder between the two numbers. It is used many times with if condition to check whether the number is divisible or not.

Related Questions

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4

What will happen if the body of a for/in loop deletes a property that has not yet been enumerated?

A. The property will be stored in a cache

B. The loop will not run

C. That property will not be enumerated

D. The property will be enumerated

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4

Consider the following code snippet :
var string2Num=parseInt(123xyz);

The result for the above code snippet would be :

A. 123

B. 123xyz

C. Exception

D. NaN

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4

What will be the output of the following JavaScript code?
var grade='A';
var result;
switch(grade)
{
case 'A':
result+=10;
case 'B':
result+= 9;
case 'C':
result+= 8;
default:
result+= 0;
}
document.write(result);

A. 10

B. 27

C. 8

D. 0

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4

The object has three object attributes namely ________

A. Class, parameters, objects extensible flag

B. Prototype, class, objects parameters

C. Prototype, class, objects extensible flag

D. Native object, Classes and Interfaces and Objects extensible flag

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4

The method or operator used to identify the array is __________

A. isarrayType()

B. ==

C. ===

D. typeof

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4

A function with no return value is called ___________

A. Procedures

B. Method

C. Static function

D. Dynamic function

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4

What will be the output of the following JavaScript code?
var pow=new Function(num1,num2,return Math.pow(num1,num2));
document.writeln(pow(2,3));

A. 2

B. 3

C. 8

D. error

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4

The expression of calling (or executing) a function or method in JavaScript is called ________

A. Primary expression

B. Functional expression

C. Invocation expression

D. Property Access Expression

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4

What will happen if reverse() and join() methods are used simultaneously?

A. Reverses and stores in the same array

B. Reverses and concatenates the elements of the array

C. Reverses

D. Stores the elements of an array in normal order

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4

The generalised syntax for a real number representation is __________

A. [digits][.digits][(E|e)[(+|-)]digits]

B. [digits][+digits][(E|e)[(+|-)]digits]

C. [digits][(E|e)[(+|-)]digits]

D. [.digits][digits][(E|e)[(+|-)]digits]

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4

Which of the following Attribute is used to include External JS code inside your HTML Document?

A. src

B. ext

C. script

D. link

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4

What will be the output of the following JavaScript code?
function compare()
{
int a=1;
char b=1;
if(a.tostring()===b)
return true;
else
return false;
}

A. true

B. false

C. runtime error

D. logical error

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4

What will be the output of the following Javascript code?
var a=3.7;
var b=2;
a=ciel(a)
document.writeIn(a*b);

A. 6

B. 7.4

C. 7.5

D. 8

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4

What will be the output of the following JavaScript code?

A. 1.01

B. 1.047

C. 1.00

D. 1.4

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4

What is the difference between the two lines given below ?
!!(obj1 && obj2);
(obj1 && obj2);

A. Both the lines result in a boolean value True

B. Both the lines result in a boolean value False

C. Both the lines checks just for the existence of the object alone

D. The first line results in a real boolean value whereas the second line merely checks for the existence of the objects

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4

What will be the output of the following JavaScript code?
const obj1 =
{
property1: 21
}
const descriptor1 = Object.getOwnPropertyDescriptor(obj1, 'property1');
console.log(descriptor1.configurable);
console.log(descriptor1.enumerable);

A. true 21

B. true false

C. true true

D. false false

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4

An expression that can legally appear on the left side of an assignment expression. is a well known explanation for variables, properties of objects, and elements of arrays. They are called ___________

A. Properties

B. Prototypes

C. Lvalue

D. Definition

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4

What will be the output of the following Javascript code?
var a= 0;
var b = 0;
while (a < 3)
{
a++;
b += a;
console.log(b);
}

A. 135

B. 123

C. 013

D. 01

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4

The var and function are __________

A. Keywords

B. Declaration statements

C. Data types

D. Prototypes

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4

The main purpose of a Live Wire in NetScape is to ________

A. Create linkage between client side and server side

B. Permit server side, JavaScript code, to connect to RDBMS

C. Support only non relational database

D. To interpret JavaScript code

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4

What happens in the following javaScript code snippet?
var count = 0;
while (count < 10)
{
console.log(count);
count++;
}

A. The values of count are logged or stored in a particular location or storage

B. The value of count from 0 to 9 is displayed in the console

C. An error is displayed

D. An exception is thrown

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4

The statement a===b refers to _________

A. Both a and b are equal in value, type and reference address

B. Both a and b are equal in value

C. Both a and b are equal in value and type

D. There is no such statement

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4

The one-liner code that concatenates all strings passed into a function is

A.

function concatenate()
{
return String.prototype.concat('', arguments);
}

B.

function concatenate()
{
return String.prototype.apply('', arguments);
}

C.

function concatenate()
{
return String.concat.apply('', arguments);
}

D.

function concatenate()
{
return String.prototype.concat.apply('', arguments);
}

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4

The reduce and reduceRight methods follow a common operation called __________

A. filter and fold

B. inject and fold

C. finger and fold

D. fold

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4

What will be the output of the following JavaScript code?
const obj1 = { property1: '10'};
const obj2 = Object.freeze(obj1);
obj2.property1 = '20';
console.log(obj2.property1);

A. 10

B. 20

C. Runtime error

D. Compilation error

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4

Consider the following code snippet.
function printArray(a)
{
var len = a.length, i = 0;
if (len == 0)
console.log(Empty Array);
else
{
do
{
console.log(a[i]);
} while (++i < len);
}
}

What does the above code result?

A. Prints the numbers in the array in order

B. Prints the numbers in the array in the reverse order

C. Prints 0 to the length of the array

D. Prints Empty Array

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4

JavaScript Code can be called by using ____________

A. RMI

B. Triggering Event

C. Preprocessor

D. Function/Method

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4

What will be the output of the following Javascript code?
var add=new Function(num1,num2,return num1+num2);
document.writeln(add(2,5));

A. 2

B. 5

C. Error

D. 7

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4

Which of the operator is used to test if a particular property exists or not?

A. in

B. exist

C. within

D. exists

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4

Consider the following JavaScript statements.
var text = testing: 1, 2, 3; // Sample text
var pattern = /d+/g // Matches all instances of one or more digits

In order to check if the pattern matches with the string text, the statement is ____________

A. text==pattern

B. text.equals(pattern)

C. text.test(pattern)

D. pattern.test(text)