operator [] method Null safety

  1. @override
T operator [](
  1. int index
)
override

The object at the given index in the list.

The index must be a valid index of this list, which means that index must be non-negative and less than length.

Implementation

@override
T operator [](int index) => throw UnsupportedError(
      'Please only use the "add" method',
    );