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
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
Which method can convert a number to a different base (e.g., hexadecimal)?
A). toString()
B). parseInt()
C). toFixed()
D). valueOf()
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
What does parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2
What does parseFloat('12.34abc') return?
A). 12
B). 34
C). NaN
D). undefined
What is the result of isNaN('Hello')?
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 (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
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10