![dart - The default value of an optional parameter must be constant flutter with class constructor - Stack Overflow dart - The default value of an optional parameter must be constant flutter with class constructor - Stack Overflow](https://i.stack.imgur.com/UFwHY.png)
dart - The default value of an optional parameter must be constant flutter with class constructor - Stack Overflow
Named/optional arguments with constructor shorthand leaks impl details · Issue #1012 · dart-lang/sdk · GitHub
In a function, non-nullable optional parameters with default value should allow to be called with nullable values · Issue #1639 · dart-lang/language · GitHub
![flutter - The default value of an optional parameter must be constant ? What is the actual issue? - Stack Overflow flutter - The default value of an optional parameter must be constant ? What is the actual issue? - Stack Overflow](https://i.stack.imgur.com/CPDac.png)
flutter - The default value of an optional parameter must be constant ? What is the actual issue? - Stack Overflow
![Dart Function Parameters in Flutter: Positional vs. Named with Examples | by Sampath Katari | Stackademic Dart Function Parameters in Flutter: Positional vs. Named with Examples | by Sampath Katari | Stackademic](https://miro.medium.com/v2/resize:fit:1400/1*sxob3BTC_fSzr0-ivBBzIw.png)