menu
attributes package
documentation
attributes.dart
PrimitiveAccessor<K>
existsNonNull abstract method
existsNonNull abstract method
dark_mode
light_mode
existsNonNull
abstract method
bool
existsNonNull
(
K
key
)
Returns true if a value at
key
exists and that value is non-null.
Implementation
bool existsNonNull(K key);
attributes package
documentation
attributes
PrimitiveAccessor<K>
existsNonNull abstract method
PrimitiveAccessor class