![Error: The argument type 'Function?' can't be assigned to the parameter type 'void Function()?' - YouTube Error: The argument type 'Function?' can't be assigned to the parameter type 'void Function()?' - YouTube](https://i.ytimg.com/vi/YanWDEuISRI/maxresdefault.jpg)
Error: The argument type 'Function?' can't be assigned to the parameter type 'void Function()?' - YouTube
Vandad Nahavandipoor on Twitter: "Did you know that in #Dart, you can #extend #functions? 🤯Any function defined with a #typedef can be extended. Here I show you how to turn an "onPressed" #
![flutter - The argument type 'void Function(Map<String, bool>)' can't be assigned to the parameter type 'Map<String, bool>' - Stack Overflow flutter - The argument type 'void Function(Map<String, bool>)' can't be assigned to the parameter type 'Map<String, bool>' - Stack Overflow](https://i.stack.imgur.com/ehf49.png)
flutter - The argument type 'void Function(Map<String, bool>)' can't be assigned to the parameter type 'Map<String, bool>' - Stack Overflow
![The curious case of void in Dart. I think void type is the most curious… | by Shubham Soni | Flutter Community | Medium The curious case of void in Dart. I think void type is the most curious… | by Shubham Soni | Flutter Community | Medium](https://miro.medium.com/max/1200/1*D5HdcaizNnBd7d62_Pz7MQ.jpeg)