Which operator is used for string concatenation in JavaScript?

What does the + operator do when used with two numbers?

A). Concatenates them as strings

B). Adds them

C). Multiplies them

D). Subtracts them

Which of the following is not a comparison operator?

A). ==

B). >

C). <=

D). =

Which of the following operators can be used to compare two values, including type comparison?

A). ==

B). =

C). ===

D). !==

What is the result of the expression 5 + '5'?

A). 10

B). 55

C). 55

D). NaN

What is the output of 10 > 5 && 5 < 2?

A). 1

B). 0

C). 1

D). 0

Which of the following is a logical operator in JavaScript?

A). &&

B). ||

C). !

D). All of the above

What does the typeof operator return for an array?

A). object

B). array

C). list

D). collection

What is the result of 10 % 3 in JavaScript?

A). 0

B). 1

C). 2

D). 3

What is the result of '5' - 2?

A). 3

B). 3

C). 03-May

D). NaN

What does typeof NaN return?

A). number

B). NaN

C). undefined

D). object