Coach, pakai https://dartpad.dev/?null_safety=false masih belum berhasil.
Syntax:
class Manusia{
String nama;
int umur;
Manusia({this.nama, this.umur});
}
void main(){
var m1 = Manusia(nama: ‘Andi’,umur: 17);
print(m1.nama);
print(m1.umur);
}
Pesan Error:
Error compiling to JavaScript:
Info: Compiling with sound null safety
Warning: Interpreting this as package URI, ‘package:dartpad_sample/main.dart’.
lib/main.dart:4:17:
Error: The parameter ‘nama’ can’t have a value of ‘null’ because of its type ‘String’, but the implicit default value is ‘null’.
Manusia({this.nama, this.umur});
^^^^
lib/main.dart:4:28:
Error: The parameter ‘umur’ can’t have a value of ‘null’ because of its type ‘int’, but the implicit default value is ‘null’.
Manusia({this.nama, this.umur});
^^^^
Error: Compilation failed.
