Variable<T> class

Variable hold value that can be changed. Value could be resolved once or continuously.

Resolve value once using variable.value getter:

final variable = Variable(0);
print(variable.value) // 0
variable.value = 1;
print(variable.value) // 1

Resolve value continuously using variable.observe:

final variable = Variable(0);
final observation = variable.observe((data) {
  print('onData: $data');
});
variable.value = 1;

Prints:

onData: 0
onData: 1

Implemented types

• Subject<T>

Available Extensions

• DisposableX
• ObservableAsStatesX
• ObservableX

Constructors

Variable(T initialValue)

Use Variable(...) to create a variable with an initial value.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value ↔ T

Use variable.value getter to resolve current value.

getter/setter pair

Methods

dispose() → void

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

observe(OnData<T> onData) → Disposable

Use observable.observe to start observe an observable, use returned observation to stop observe.

override

onData(T data) → void

Use observer.onData to notify observer.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited