ReadOnlyObservableCollection.unshift - Andrei15193/react-model-view-viewmodel GitHub Wiki

Inserts new elements at the start of the collection, and returns the new length of the collection.

protected unshift(
  ...items: readonly TItem[]
): number

Source reference: src/collections/observableCollections/ReadOnlyObservableCollection.ts:783.

• items (rest): readonly TItem[]
  Elements to insert at the start of the collection.

The new length of the collection.

• Array.unshift