bool class Null safety
The reserved words true and false denote objects that are the only two
instances of this class.
It is a compile-time error for a class to attempt to extend or implement bool.
Constructors
- bool.fromEnvironment(String name, {bool defaultValue = false})
-
Returns the boolean value of the environment declaration
name.constfactory - bool.hasEnvironment(String name)
-
Whether there is an environment declaration
name.constfactory
Properties
- hashCode → int
-
The hash code for this object.
read-onlyoverride
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
toString(
) → String -
Returns either
"true"fortrueand"false"forfalse.override
Operators
-
operator &(
bool other) → bool -
The logical conjunction ("and") of this and
other. -
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator ^(
bool other) → bool -
The logical exclusive disjunction ("exclusive or") of this and
other. -
operator |(
bool other) → bool -
The logical disjunction ("inclusive or") of this and
other.