Answer & Solution
Answer: Option B
Solution:
The Number.isInteger() method determines whether the passed value is an integer. Number.isInteger(123.45) returns false because 123.45 is not an integer.
Q
What does Number.isInteger(123.45) return?
Related Questions on Average
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 (123.456).toFixed(1) return?
A). 4
B). 5
C). 45
D). 123
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
What is the output of (255).toString(2)?
A). 255
B). 11111111
C). ff
D). 10
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN
What does parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2
Which method returns the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
Which method converts a string to a floating point number?
A). parseFloat()
B). toFixed()
C). toPrecision()
D). Number()
What does parseFloat('12.34abc') return?
A). 12
B). 34
C). NaN
D). undefined