What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
Which method returns a number in exponential notation?
A). toFixed()
B). toExponential()
C). toPrecision()
D). toString()
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
What does Number('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
Which method converts a string to a floating point number?
A). parseFloat()
B). toFixed()
C). toPrecision()
D). Number()
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()
How do you format a number to two decimal places?
A). toFixed(2)
B). toExponential(2)
C). toPrecision(2)
D). toString(2)
What does parseFloat('12.34abc') return?
A). 12
B). 34
C). NaN
D). undefined
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined