mapOrNull<TResult extends Object?> method
Null safety
- TResult? $default(
- PreferredSize value
- {TResult? appBar(
- AppBar value
- TResult? tabBar(
- TabBar value
@optionalTypeArgs, inherited
Implementation
@optionalTypeArgs
TResult? mapOrNull<TResult extends Object?>(
TResult? Function(PreferredSize value)? $default, {
TResult? Function(AppBar value)? appBar,
TResult? Function(TabBar value)? tabBar,
}) =>
throw _privateConstructorUsedError;