ReadOnlyObservableCollection.unshift

API / ReadOnlyObservableCollection<TItem> / unshift method

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

This is a protected method.

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

Parameters

• items: readonly TItem[], elements to insert at the start of the collection.

Returns: Number

Returns the new length of the collection.

See

• Array.unshift