truncateToDouble method

double? truncateToDouble()

Returns the integer double value obtained by discarding any fractional digits from this.

If this is already an integer valued double, including -0.0, or it is not a finite value, the value is returned unmodified.

For the purpose of rounding, -0.0 is considered to be below 0.0. A number d in the range -1.0 < d < 0.0 will return -0.0, and in the range 0.0 < d < 1.0 it will return 0.0.

print(Obj(2.5).truncateToDouble()); // 2.0
print(Obj(2.00001).truncateToDouble()); // 2.0
print(Obj(1.99999).truncateToDouble()); // 1.0
print(Obj(0.5).truncateToDouble()); // 0.0
print(Obj(-0.5).truncateToDouble()); // -0.0
print(Obj(-1.5).truncateToDouble()); // -1.0
print(Obj(-2.5).truncateToDouble()); // -2.0

Implementation

double? truncateToDouble() => value?.truncateToDouble();