Late Keyword

 /// late keyword: It has two use cases

///Declaring a non-nullable variable that's initialized after its declaration.
///Lazily initializing a variable.
//If we add "late" keyword at variable declaration time that means we promise to compiler that we will assign value
//to that variable before it is used.

void main() {
  Sample obj = Sample();
  obj.x = 10;
  print(obj.x);
}
class Sample {
  late int x;
}

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