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
What does Number('123') return?
A). 123
B). 123
C). NaN
D). 23
What does parseFloat('12.34abc') return?
A). 12
B). 34
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)
What is the output of (255).toString(2)?
A). 255
B). 11111111
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What does Number.isNaN('123') return?
A). 1
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A). toString()
B). parseInt()
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D). valueOf()
What is the result of parseInt('0xF', 16)?
A). 15
B). 0
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Which method converts a string to a floating point number?
A). parseFloat()
B). toFixed()
C). toPrecision()
D). Number()
What does Number.isInteger(123.45) return?
A). 1
B). 0
C). NaN
D). undefined
What does the method parseInt('10.5') return?
A). 5
B). 11
C). 10
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