Which symbol is used to denote a string template literal?

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 is the result of null === undefined?

A). 1

B). 0

C). Error

D). NaN

What is the result of null == undefined?

A). 1

B). 0

C). Error

D). NaN

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

A). symbol

B). object

C). string

D). undefined

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

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

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()

Which function can convert a number to a string in JavaScript?

A). toString()

B). parseInt()

C). String()

D). Number()