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
How do you format a number to two decimal places?
A). toFixed(2)
B). toExponential(2)
C). toPrecision(2)
D). toString(2)
What does isFinite(123) return?
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()
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()
What is the result of parseInt('0xF', 16)?
A). 15
B). 0
C). NaN
D). 16
What does Number('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined