OptionalDataStoreclass

new OptionalDataStore<T>()

Return
`OptionalDataStore<T>`	Store a data object that may be undefined (e.g. a document that may not exist).

Property	Type
`.data`	`T`	Get the current data of this store, or throw if it is not set. - Supports suspense-like reads: throws a `Promise` while loading or the error `reason` on failure (inherited from `Store.value`). required
`.exists`	`boolean`	Whether the data currently exists (is not `undefined`). required readonly

Store a data object that may be undefined (e.g. a document that may not exist).

Reading data or calling require() throws RequiredError when the value is undefined.
delete() sets the value back to undefined.

Methods

Require the data of this store, or throw RequiredError if it is not set.

require(caller: AnyCaller = this.require): T

Update several props in this data.

update(updates: Updates<T>): void

Get a single named prop from this data.

get(name: K): T[K]

Set a single named prop in this data.

set(name: K, value: T[K]): void

Set the data to undefined.

delete(): void