Which method returns the primitive value of a Number object?

What does parseFloat('12.34abc') return?

A). 12

B). 34

C). NaN

D). undefined

What does Number('123abc') return?

A). 123

B). NaN

C). 123abc

D). undefined

What does Number.isInteger(123.45) return?

A). 1

B). 0

C). NaN

D). undefined

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

A). 1

B). 0

C). NaN

D). undefined

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

A). toString()

B). parseInt()

C). toFixed()

D). valueOf()

Which method converts a string to a floating point number?

A). parseFloat()

B). toFixed()

C). toPrecision()

D). Number()

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

A). isNaN()

B). isFinite()

C). Number()

D). toFixed()

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

How do you format a number to two decimal places?

A). toFixed(2)

B). toExponential(2)

C). toPrecision(2)

D). toString(2)

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

A). 1

B). 0

C). NaN

D). undefined