@microsoft/fast-foundation > singleton
singleton() function
Registers the target class as a singleton dependency; the class will only be created once. Each consecutive time the dependency is resolved, the same instance will be returned.
export declare function singleton<T extends Constructable>(target: T & Partial<RegisterSelf<T>>): T & RegisterSelf<T>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| target | T & Partial<RegisterSelf<T>> | The class / constructor function to register as a singleton. |
T & RegisterSelf<T>
Example
@singleton()
class Foo { }