Interface StateChangeEvent<T>

Metadata describing a state change event.

interface StateChangeEvent<T> {
    currentValue: T;
    key?: string;
    previousValue: T;
    timestamp: number;
    type: StateChangeType;
}

Type Parameters

T

Index

Properties

currentValue key? previousValue timestamp type

Properties

currentValue

currentValue: T

State value after the change.

`Optional`key

key?: string

Optional key identifying which part of state changed.

previousValue

previousValue: T

State value before the change.

timestamp

timestamp: number

Event timestamp.

type

type: StateChangeType

The operation that triggered the change.