ReadOnlyObservableSet.has - Andrei15193/react-model-view-viewmodel GitHub Wiki

Checks whether the provided item is in the collection.

public has(
  item: TItem
): boolean

Source reference: src/collections/observableSet/ReadOnlyObservableSet.ts:89.

• item: TItem
  The item to search for.

Returns true if the provided item is found in the collection; otherwise false.

• Set.has