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 is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
D). undefined
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
What does Number('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
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()
Which method converts a string to a floating point number?
A). parseFloat()
B). toFixed()
C). toPrecision()
D). Number()
How do you format a number to two decimal places?
A). toFixed(2)
B). toExponential(2)
C). toPrecision(2)
D). toString(2)
What does (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN