Answer & Solution
Answer: Option A
Solution:
The parseInt() function parses a string argument and returns an integer of the specified radix. parseInt('101', 2) returns 5 because '101' is 5 in binary.
Q
What does parseInt('101', 2) return?
Related Questions on Average
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
How do you format a number to two decimal places?
A). toFixed(2)
B). toExponential(2)
C). toPrecision(2)
D). toString(2)
Which method converts a number to a string?
A). toFixed()
B). toString()
C). valueOf()
D). parseFloat()
What does Number('123abc') return?
A). 123
B). NaN
C). 123abc
D). undefined
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
What is the result of isNaN('Hello')?
A). 1
B). 0
C). NaN
D). undefined
What does isFinite(123) return?
A). 1
B). 0
C). NaN
D). undefined
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
What is the result of parseInt('0xF', 16)?
A). 15
B). 0
C). NaN
D). 16
Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()