round method Null safety
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).
print(3.0.round()); // 3
print(3.25.round()); // 3
print(3.5.round()); // 4
print(3.75.round()); // 4
print((-3.5).round()); // -4
Implementation
int round();