What is the result of null === undefined?

What is the data type of true in JavaScript?

A). String

B). Boolean

C). Number

D). Object

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}

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

A). ==

B). !=

C). ===

D). !==

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

What is the output of typeof null?

A). null

B). undefined

C). object

D). number

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

Which of the following is a falsy value in JavaScript?

A). 0

B).

C). null

D). All of the above

What will typeof [1, 2, 3] return?

A). array

B). object

C). number

D). list

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

A). String

B). Number

C). Object

D). Boolean