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-only, override
- The hash code for this object.
- runtimeType → Type
read-only, inherited
- 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
@Since("2.1")
- The logical conjunction ("and") of this and
other. - operator ==(Object other) → bool
inherited
- The equality operator.
- operator ^(bool other) → bool
@Since("2.1")
- The logical exclusive disjunction ("exclusive or") of this and
other. - operator |(bool other) → bool
@Since("2.1")
- The logical disjunction ("inclusive or") of this and
other.