Answer & Solution
Answer: Option B
Solution:
The isFinite() method determines whether a value is a finite number.
Q
Which method would you use to check if a value is a finite number?
Related Questions on Average
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
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 parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2
How do you format a number to two decimal places?
A). toFixed(2)
B). toExponential(2)
C). toPrecision(2)
D). toString(2)
Which method returns a number in exponential notation?
A). toFixed()
B). toExponential()
C). toPrecision()
D). toString()
What is the result of parseInt('0xF', 16)?
A). 15
B). 0
C). NaN
D). 16
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
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