Interface Readable<T>

A readonly implementation of the observable pattern. Frameworks and vanilla consumers use this to read state and subscribe to changes.

interface Readable<T> {
get(): T;
subscribe(listener: () => void): () => void;
}

Type Parameters

T

Index

Methods

Methods

get

get(): T

Synchronously returns the current value.

Returns T

subscribe(listener: () => void): () => void
Subscribes to changes.
Parameters
- listener: () => void
  A callback that is invoked when the value changes.
Returns () => void
An unsubscribe function to clean up the listener.