Question : ?? in dart
Answered by : ravin-laheri
Called also null operator. This operator returns expression on its left, except if it is null, and if so, it returns right expression:
void main() { print(0 ?? 1); // <- 0 print(1 ?? null); // <- 1 print(null ?? null); // <- null print(null ?? null ?? 2); // <- 2
}
Source : | Last Update : Tue, 15 Nov 22