Q
What does toPrecision(3) do?

Answer & Solution

Answer: Option C
Solution:
The toPrecision() method formats a number to a specified length, so toPrecision(3) returns a string with the number written with three significant digits.
Related Questions on Average

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

A). 255

B). 11111111

C). ff

D). 10

What does Number.isInteger(123.45) return?

A). 1

B). 0

C). NaN

D). undefined

Which method returns a number in exponential notation?

A). toFixed()

B). toExponential()

C). toPrecision()

D). toString()

What does Number('123') return?

A). 123

B). 123

C). NaN

D). 23

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

A). 5

B). 101

C). NaN

D). 2

What does parseFloat('12.34abc') return?

A). 12

B). 34

C). NaN

D). undefined

What does Number.isNaN('123') return?

A). 1

B). 0

C). NaN

D). undefined

Which method returns the primitive value of a Number object?

A). toString()

B). valueOf()

C). toFixed()

D). parseFloat()

What does isFinite(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