Dart round a figure but as a double
139
Solution 1
double number = 84.5;
double answer = (number * 2.3).roundToDouble(); // 194.0
Solution 2
CopsOnRoad's answer is the most direct way, but in general the way to convert an int
to a double
is to use int.toDouble
:
double number = 84.5;
double coke = (number * 2.3).round().toDouble();
Using as double
doesn't work because as
changes what type the object is treated as but doesn't change the underlying object.
Author by
Hasen
Updated on December 13, 2022Comments
-
Hasen over 1 year
I want to multiply a figure and then have it rounded to remove any decimal places but returned as a double, rather than an int since that is what I need.
I've tried this:
double number = 84.5; double coke = (number * 2.3).round()) as double;
and this:
double coke = double.parse(number * 2.3).round());
But I can't get it to be a double, it just throws errors. The value would be
194.35
in this case and I want it to be194.0
. -
Hasen almost 5 yearsWow I did not know about that. Works perfectly, thanks.