What does parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2
What is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
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 converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
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()
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 isFinite(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()