sortedBy<K extends Comparable<K> > method
Returns a new set with elements sorted by the given key
function.
Example:
final set = {'apple', 'banana', 'cherry'};
print(set.sortedBy((e) => e.length)); // {apple, cherry, banana}
Implementation
Set<E> sortedBy<K extends Comparable<K>>(K Function(E element) key) {
return sorted((a, b) => key(a).compareTo(key(b)));
}