Flutter
boolean_selector
BooleanSelector
none constant
none
none
constant
Null safety
None const
none
A selector that accepts no inputs.
Implementation
static const none = None();
Flutter
boolean_selector
BooleanSelector
none constant
BooleanSelector class
Constructors
parse
Properties
hashCode
runtimeType
variables
Methods
evaluate
intersection
noSuchMethod
toString
union
validate
Operators
operator ==
Constants
all
none