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.
Q
What does toPrecision(3) do?
Related Questions on Average
Which method would you use to check if a value is a finite number?
A). isNaN()
B). isFinite()
C). Number()
D). toFixed()
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 the primitive value of a Number object?
A). toString()
B). valueOf()
C). toFixed()
D). parseFloat()
Which method can convert a number to a different base (e.g., hexadecimal)?
A). toString()
B). parseInt()
C). toFixed()
D). valueOf()
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
D). NaN
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 Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
What does Number.isNaN('123') return?
A). 1
B). 0
C). NaN
D). undefined
What does parseInt('101', 2) return?
A). 5
B). 101
C). NaN
D). 2