Stop .toFixed from rounding the number

Question

I Have the following

var dividedResult = (893/ 200); var result = dividedResult.toFixed(decimalPlaces);

The divided result is

4.465

and the result is

4.5

How do I stop the rounding in this case?

I want the result to be

4.4

Prasath K · Accepted Answer · 2013-03-19 10:42:56Z

Try this 4.465 * 10 = 44.65 .. parseInt(44.65) = 44/10 = 4.4

result = parseInt(result * 10)/10;

For any number of decimal places

result = parseInt(result * Math.pow(10,NumberOfDecimalPlaces))/(Math.pow(10,NumberOfDecimalPlaces));

Greg Hornby · Accepted Answer · 2013-03-19 10:35:25Z

Expanding on Prasath's answer, if you wanted to distinguish between rounding up and rounding down to 1 decimal place you would do

Rounding down (4.4)

result = Math.floor(result * 10)/10;

Rounding up (4.5)

result = Math.ceil(result * 10)/10;

For your case, for any number of decimal places, use

result = Math.floor(result * Math.pow(10,decimalPlaces))/Math.pow(10,decimalPlaces);

2 Answers 2