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 the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN
What does (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123
What is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
D). undefined
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
What does Number('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
What does isFinite(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
Which method can convert a number to a different base (e.g., hexadecimal)?
A). toString()
B). parseInt()
C). toFixed()
D). valueOf()