IMapObserver

An observer that can subscribe to changes of an IObservableMap

Methods

• onAdded
• onCollectionUpdated
• onRemoved
• onUpdated

Methods

onAdded

onAdded(index: string, item: ItemT, collection: Dictionary<ItemT>): void

Called when an item is added with the index, the new item, and current state of the collection.

Parameter	Type
index	string
item	ItemT
collection	Dictionary<ItemT>

onCollectionUpdated

onCollectionUpdated(collection: Dictionary<ItemT>): void

Called when a set of changes happens within the collection. For example, this can be used to get the initial state of the collection instead of receiving individual onAdded calls for each item.

Parameter	Type
collection	Dictionary<ItemT>

onRemoved

onRemoved(index: string, item: ItemT, collection: Dictionary<ItemT>): void

Called when an item is removed, with the index, the removed item, and current state of the collection.

Parameter	Type
index	string
item	ItemT
collection	Dictionary<ItemT>

onUpdated

onUpdated(index: string, item: ItemT, collection: Dictionary<ItemT>): void

Called when an existing item is altered, with the index, the new item, and current state of the collection.

Parameter	Type
index	string
item	ItemT
collection	Dictionary<ItemT>

• Methods
  • onAdded
  • onCollectionUpdated
  • onRemoved
  • onUpdated