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floor abstract method
int floor(Returns the greatest integer no greater than this.
If this is not finite (NaN or infinity), throws an UnsupportedError.
Source
int floor();
© 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/floor.html