Home
Current Affairs January 2024

What is the correct answer?

4

What will be the output of the following JavaScript code?
Int a=1;
if(a>10)
{
document.write(10);
}
else
{
document.write(a);
}

A. 10

B. 0

C. 1

D. Undefined

Correct Answer :

C. 1


Explanation: The if else statement is a part of the javascript conditioning statements. The line of code inside the if statement is executed if the value passed to if is 1.

Related Questions

What is the correct answer?

4

A function definition expression can be called as __________

A. Function prototype

B. Function literal

C. Function calling

D. Function declaration

What is the correct answer?

4

What will be the firstname and surname of the following JavaScript code?
var book = {
main title: JavaScript,
'sub-title': The Definitive Guide,
for: all audiences,
author: {
firstname: David,
surname: Flanagan
}
};

A. properties

B. property values

C. property names

D. objects

What is the correct answer?

4

What will be the output of the following Javascript code?
function range(int length)
{
int a=5;
for(int i=0;i<length;i++)
{
console.log(a);
}
}
range(3);

A. 5

B. 555

C. 3

D. error

What is the correct answer?

4

What kind of expression is new Point(2,3)?

A. Primary Expression

B. Object Creation Expression

C. Invocation Expression

D. Constructor Calling Expression

What is the correct answer?

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

What is the correct answer?

4

What will be the output of the following JavaScript code?
var a=5 , b=1
var obj = { a : 10 }
with(obj)
{
alert(b)
}

A. 10

B. Error

C. 1

D. 5

What is the correct answer?

4

If you have a function f and an object o, you can define a method named m of o with

A. o.m=m.f;

B. o.m=f;

C. o=f.m;

D. o=f;

What is the correct answer?

4

Among the keywords below, which one is not a statement?

A. debugger

B. with

C. if

D. use strict

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

4

What will be the output of the following JavaScript code?

A. 7.25

B. -7.25

C. 7

D. -7

What is the correct answer?

4

When an empty statement is encountered, a JavaScript interpreter __________

A. Ignores the statement

B. Prompts to complete the statement

C. Throws an error

D. Shows a warning

What is the correct answer?

4

What is the purpose of a return statement in a function?

A. Returns the value and continues executing rest of the statements, if any

B. Returns the value and stops the program

C. Returns the value and stops executing the function

D. Stops executing the function and returns the value

What is the correct answer?

4

Which is an equivalent code to invoke a function m of class o that expects two arguments x and y?

A. o(x,y);

B. o.m(x) && o.m(y);

C. m(x,y);

D. o.m(x,y);

What is the correct answer?

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]

What is the correct answer?

4

Which attribute is used to specify that the script is executed when the page has finished parsing? (only for external scripts)

A. parse

B. a sync

C. defer

D. type

What is the correct answer?

4

JavaScript _________ when there is an indefinite or an infinite value during an arithmetic computation.

A. Prints an exception error

B. Prints an overflow error

C. Displays Infinity

D. Prints the value as such

What is the correct answer?

4

To determine whether one object is the prototype of (or is part of the prototype chain of) another object, one should use the ____________

A. isPrototypeOf() method

B. equals() method

C. === operator

D. ==opertor

What is the correct answer?

4

In the following switch syntax, the expression is compared with the case labels using which of the following operator(s)?
switch(expression)
{
statements
}

A. ==

B. equals

C. equal

D. ===

What is the correct answer?

4

What will be the output of the following JavaScript code?
var values=[one,two,Three];
var ans=values.shift();
document.writeln(ans);

A. one

B. two

C. three

D. error

What is the correct answer?

4

What is a block statement in JavaScript?

A. conditional block

B. block that contains a single statement

C. both conditional block and a single statement

D. block that combines multiple statements into a single compound statement

What is the correct answer?

4

The var and function are __________

A. Keywords

B. Declaration statements

C. Data types

D. Prototypes

What is the correct answer?

4

The web development environment (JavaScript) offers which standard construct for data validation of the input entered by the user.

A. Controlled loop constructs

B. Case checking constructs

C. Validation constructs

D. All of the mentioned

What is the correct answer?

4

What will be the output of the following JavaScript code?
function compare()
{
int num=2;
char b=2;
if(a==b)
return true;
else
return false;
}

A. true

B. false

C. runtime error

D. compilation error

What is the correct answer?

4

What will be the output of the following JavaScript code?

A. 125

B. 25

C. 5

D. Error

What is the correct answer?

4

A hexadecimal literal begins with __________

A. 00

B. 0x

C. 0X

D. Both 0x and 0X

What is the correct answer?

4

What will be the output of the following JavaScript code?
function printprops(o)
{
for(var p in o)
console.log(p + : + o[p] +
);
}

A. Prints the contents of each property of o

B. Returns undefined

C. Prints only one property

D. Prints the address of elements

What is the correct answer?

4

One of the special feature of an interpreter in reference with the for loop is that ___________

A. Before each iteration, the interpreter evaluates the variable expression and assigns the name of the property

B. The iterations can be infinite when an interpreter is used

C. The body of the loop is executed only once

D. the iteration is finite when an interpreter is used

What is the correct answer?

4

What will be the output of the following JavaScript code?
function equalto()
{
int num=10;
if(num===10)
return true;
else
return false;
}

A. true

B. false

C. runtime error

D. compilation error

What is the correct answer?

4

The unordered collection of properties, each of which has a name and a value is called _________

A. String

B. Object

C. Serialized Object

D. Array