length property

@override int get length

The number of objects in this list.

The valid indices for a list are 0 through length - 1.

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

Implementation

@override
int get length => internalList.length;

@override set length (int newLength)

This operation is not supported by an unmodifiable list.

Implementation

@override
set length(int newLength) {
  throw UnsupportedError('Cannot change the length of an unmodifiable list');
}