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.
const
factory
bool.hasEnvironment(String name)
Whether there is an environment declaration name.
const
factory

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" for true and "false" for false.
override

Operators

operator &(bool other) → bool
The logical conjunction ("and") of this and other.
@Since("2.1")
operator ==(Object other) → bool
The equality operator.
inherited
operator ^(bool other) → bool
The logical exclusive disjunction ("exclusive or") of this and other.
@Since("2.1")
operator |(bool other) → bool
The logical disjunction ("inclusive or") of this and other.
@Since("2.1")