floor method
Returns the greatest integer no greater than this number.
Rounds the number towards negative infinity.
Throws an UnsupportedError if this number is not finite (NaN or infinity).
print(1.99999.floor()); // 1
print(2.0.floor()); // 2
print(2.99999.floor()); // 2
print((-1.99999).floor()); // -2
print((-2.0).floor()); // -2
print((-2.00001).floor()); // -3
Implementation
int floor() => value.floor();