kotlin in dart (approach) https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/let.html

Flutter_extension_object_as_kotlin.dart

// its looks like a '.let' in kotlin , awesome !, dart
extension ObjectExt<T> on T {
  R let<R>(R Function(T) x) => x(this);
}

// for example
/**
* we have nested json object for example data --> user --> 
*/

// data.user.let((p0) => {
//   p0.id,
//   p0.name
// });

// so we don't need to define or use the attributes like these
// data.user.id
// data.user.name