Gets the value of this Expando's property on the given object. If the object hasn't been expanded, the method returns null
.
The object must not be a number, a string, a boolean or null.
external T operator [](Object object);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/Expando/operator_get.html