listFromJson static method
Implementation
static List<Polygon> listFromJson(List<dynamic>? json) {
if (json == null) {
return <Polygon>[];
}
return json.fold(<Polygon>[], (List<Polygon> previousValue, element) {
final Polygon? object = Polygon.fromJson(element);
if (object is Polygon) {
previousValue.add(object);
}
return previousValue;
});
}