IterableChangeRecord

Record representing the item change information.

      
      interface IterableChangeRecord<V> {
  currentIndex: number | null
  previousIndex: number | null
  item: V
  trackById: any
}
    

属性

属性说明
currentIndex: number | null 只读

Current index of the item in Iterable or null if removed.

previousIndex: number | null 只读

Previous index of the item in Iterable or null if added.

item: V 只读

The item.

trackById: any 只读

Track by identity as computed by the TrackByFunction.