JavaScript MCQ : JS Statements (Multiple Choice Questions)

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Question 1

What will be printed on the screen ?

A	100101010
B	130
C	1001020
D	10030

Question 1 Explanation:

String + Number = String

Question 2

During addition of two numbers , suppose one of the number is NaN then output of the following code will be ?

A	Zero
B	Infinite
C	NaN
D	Null

Question 2 Explanation:

NaN + Any Value = NaN

Question 3

+Infinity in JS gets added with +Infinity then output of the code will be -

A	-Infinity
B	NaN
C	+Infinity

Question 3 Explanation:

+Infinity + +Infinity = +Infinity

Question 4

-Infinity in JS gets added with -Infinity then output of the code will be -

A	-Infinity
B	+Infinity
C	NaN

Question 4 Explanation:

-Infinity + -Infinity = -Infinity

Question 5

-Infinity in JS gets added with +Infinity then output of the code will be -

A	NaN
B	-Infinity
C	+Infinity

Question 5 Explanation:

+Infinity + -Infinity = NaN

There are 5 questions to complete.

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JavaScript MCQ : JS Statements (Multiple Choice Questions)

JavaScript