ReadOnlyObservableCollection.includes

API / ReadOnlyObservableCollection<TItem> / includes method

Checks whether the provided item is in the collection.

public includes(
  item: TItem,
  fromIndex?: number
): boolean

Source reference: src/collections/observableCollections/ReadOnlyObservableCollection.ts:622.

Parameters

• item: TItem
  The item to search for.

• fromIndex: number
  The index from where to start the search.

Returns: boolean

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

See also

• Array.includes