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 is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
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 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()
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 does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN