isNegative property
bool isNegativeTrue if the number is negative; otherwise, false.
Negative numbers are those less than zero, and the double -0.0
.
Source
bool get isNegative;
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-core/num/isNegative.html