SortedMap<K extends Comparable, V>.from constructor
SortedMap<K extends Comparable, V>.from (])
Creates a SortedMap that contains all key/value pairs of other
.
Implementation
factory SortedMap.from(Map<K, V> other,
[Ordering ordering = const Ordering.byKey()]) {
return SortedMap(ordering)..addAll(other);
}