add method

void add(
  1. E valueToAdd
)

Adds value to the end of this list, extending the length by one.

The list must be growable.

final numbers = <int>[1, 2, 3];
numbers.add(4);
print(numbers); // [1, 2, 3, 4]

Implementation

void add(E valueToAdd) {
  if (value == null) return;
  update((_) => value?.add(valueToAdd));
}