Which method returns a number in exponential notation?

Which method converts a string to a floating point number?

A). parseFloat()

B). toFixed()

C). toPrecision()

D). Number()

Which method converts a number to a string?

A). toFixed()

B). toString()

C). valueOf()

D). parseFloat()

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

A). isNaN()

B). isFinite()

C). Number()

D). toFixed()

What does Number('123') return?

A). 123

B). 123

C). NaN

D). 23

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

A). 255

B). 11111111

C). ff

D). 10

Which method can convert a number to a different base (e.g., hexadecimal)?

A). toString()

B). parseInt()

C). toFixed()

D). valueOf()

What does Number('123abc') return?

A). 123

B). NaN

C). 123abc

D). undefined

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 parseFloat('12.34abc') return?

A). 12

B). 34

C). NaN

D). undefined

What does Number.isInteger(123.45) return?

A). 1

B). 0

C). NaN

D). undefined