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 (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
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('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
What is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
D). undefined
Which method can convert a number to a different base (e.g., hexadecimal)?
A). toString()
B). parseInt()
C). toFixed()
D). valueOf()
What does parseFloat('12.34abc') return?
A). 12
B). 34
C). NaN
D). undefined
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
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