removeItem method
Implementation
int removeItem(T item) {
final List<T?> items = _relationship.values.map((e) => e?.item).toList();
final index = items.indexOf(item);
if (index > -1) {
removeItemAt(index);
}
return index;
}
int removeItem(T item) {
final List<T?> items = _relationship.values.map((e) => e?.item).toList();
final index = items.indexOf(item);
if (index > -1) {
removeItemAt(index);
}
return index;
}