round method
override
Returns the integer closest to this number.
Rounds away from zero when there is no closest integer: (3.5).round() == 4
and (-3.5).round() == -4
.
Throws an UnsupportedError if this number is not finite (NaN or an infinity), .
Implementation
int round();
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-core/double/round.html