Which method can convert a number to a different base (e.g., hexadecimal)?
A). toString()
B). parseInt()
C). toFixed()
D). valueOf()
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
What does (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123
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
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
Which method converts a string to a floating point number?
A). parseFloat()
B). toFixed()
C). toPrecision()
D). Number()
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN
What is the result of parseInt('0xF', 16)?
A). 15
B). 0
C). NaN
D). 16