Which symbol is used to denote a string template literal?

What is the output of typeof function() {}?

A). function

B). object

C). undefined

D). number

What is the result of typeof Symbol('id')?

A). symbol

B). object

C). string

D). undefined

How do you declare a variable with an undefined value?

A). let x;

B). let x = '';

C). let x = 0;

D). let x = null;

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

A). ==

B). !=

C). ===

D). !==

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error

What is the result of null == undefined?

A). 1

B). 0

C). Error

D). NaN

What is the data type of true in JavaScript?

A). String

B). Boolean

C). Number

D). Object

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()