Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()
Which method returns a number in exponential notation?
A). toFixed()
B). toExponential()
C). toPrecision()
D). toString()
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 isFinite(123) return?
A). 1
B). 0
C). NaN
D). undefined
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
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
What does (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123