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('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
What does isFinite(123) return?
A). 1
B). 0
C). NaN
D). undefined
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
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.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined