Which method converts a number to a string?

What does Number.isNaN('123') return?

A). 1

B). 0

C). NaN

D). undefined

What is the output of (255).toString(2)?

A). 255

B). 11111111

C). ff

D). 10

What does parseInt('101', 2) return?

A). 5

B). 101

C). NaN

D). 2

Which method would you use to check if a value is a finite number?

A). isNaN()

B). isFinite()

C). Number()

D). toFixed()

What is the result of parseInt('0xF', 16)?

A). 15

B). 0

C). NaN

D). 16

Which method returns a number in exponential notation?

A). toFixed()

B). toExponential()

C). toPrecision()

D). toString()

What does toPrecision(3) do?

A). Formats a number to 3 decimal places

B). Returns a number in exponential notation

C). Returns a string with a number written with a specified length

D). Converts a number to a string

What does Number('123abc') return?

A). 123

B). NaN

C). 123abc

D). undefined

What is the result of isNaN('Hello')?

A). 1

B). 0

C). NaN

D). undefined

What does parseFloat('12.34abc') return?

A). 12

B). 34

C). NaN

D). undefined