Q
What does parseInt('101', 2) return?

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.
Related Questions on Average

What does (123.456).toFixed(1) return?

A). 4

B). 5

C). 45

D). 123

What does Number('123abc') return?

A). 123

B). NaN

C). 123abc

D). undefined

How do you format a number to two decimal places?

A). toFixed(2)

B). toExponential(2)

C). toPrecision(2)

D). toString(2)

What does isFinite(123) return?

A). 1

B). 0

C). NaN

D). undefined

What is the output of (255).toString(2)?

A). 255

B). 11111111

C). ff

D). 10

Which method converts a number to a string?

A). toFixed()

B). toString()

C). valueOf()

D). parseFloat()

Which method converts a string to a floating point number?

A). parseFloat()

B). toFixed()

C). toPrecision()

D). Number()

Which method returns a number in exponential notation?

A). toFixed()

B). toExponential()

C). toPrecision()

D). toString()

What does parseFloat('12.34abc') return?

A). 12

B). 34

C). NaN

D). undefined

What does the method parseInt('10.5') return?

A). 5

B). 11

C). 10

D). NaN