getChild method Null safety
- T childValue
Returns the child node with the value given.
Implementation
Future<SmoothCategory<T>?> getChild(T childValue) async {
final List<SmoothCategory<T>> results = await getChildren()
.where((SmoothCategory<T> child) => child.value == childValue)
.toList();
if (results.isEmpty) {
return null;
}
return results.single;
}