Q
What is the data type of true in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The value true is a boolean value, so its data type is Boolean.
Related Questions on Average

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error

Which method can be used to convert a string to a number in JavaScript?

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

How do you declare a variable with an undefined value?

A). let x;

B). let x = '';

C). let x = 0;

D). let x = null;

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

Which of the following is not a primitive data type in JavaScript?

A). String

B). Number

C). Object

D). Boolean

Which operator checks both value and type for equality in JavaScript?

A). ==

B). !=

C). ===

D). !==