JsonCodec.withReviver constructor Null safety

  1. dynamic reviver(
    1. Object? key,
    2. Object? value

Creates a JsonCodec with the given reviver.

The reviver function is called once for each object or list property that has been parsed during decoding. The key argument is either the integer list index for a list property, the string map key for object properties, or null for the final result.


JsonCodec.withReviver(dynamic reviver(Object? key, Object? value))
    : this(reviver: reviver);