Spec-Zone.ru › Dart 2

dart:core

bool class

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})
const
factory
Returns the boolean value of the environment declaration name.
bool.hasEnvironment(String name)
const
factory
Whether there is an environment declaration name.

Properties

hashCode → int
read-onlyoverride
The hash code for this object.
runtimeType → Type
read-onlyinherited
A representation of the runtime type of the object.

Methods

noSuchMethod(Invocation invocation) → dynamic
inherited
Invoked when a non-existent method or property is accessed.
toString() → String
override
Returns either "true" for true and "false" for false.

Operators

operator &(bool other) → bool
The logical conjunction ("and") of this and other.
operator ==(Object other) → bool
inherited
The equality operator.
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.

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.19.6/dart-core/bool-class.html

Spec-Zone.ru

Настройки Оффлайн Что нового Помощь О нас
Spec-Zone .ru
спецификации, руководства, описания, API