Answer & Solution
Answer: Option B
Solution:
The Number() function converts a string to a number, so Number('123') returns 123.
Q
What does Number('123') return?
Related Questions on Average
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN
What is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
D). undefined
Which method returns a number in exponential notation?
A). toFixed()
B). toExponential()
C). toPrecision()
D). toString()
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 parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()
What does Number.isInteger(123.45) 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