DefaultIterableDiffer

class deprecated

Deprecated: v4.0.0 - Should not be part of public API.

      
      class DefaultIterableDiffer<V> implements IterableDiffer, IterableChanges {
  constructor(trackByFn?: TrackByFunction<V>)
  length: number
  collection: V[] | Iterable<V> | null
  isDirty: boolean
  forEachItem(fn: (record: IterableChangeRecord_<V>) => void)
  forEachOperation(fn: (item: IterableChangeRecord<V>, previousIndex: number, currentIndex: number) => void)
  forEachPreviousItem(fn: (record: IterableChangeRecord_<V>) => void)
  forEachAddedItem(fn: (record: IterableChangeRecord_<V>) => void)
  forEachMovedItem(fn: (record: IterableChangeRecord_<V>) => void)
  forEachRemovedItem(fn: (record: IterableChangeRecord_<V>) => void)
  forEachIdentityChange(fn: (record: IterableChangeRecord_<V>) => void)
  diff(collection: NgIterable<V>): DefaultIterableDiffer<V> | null
  onDestroy()
  check(collection: NgIterable<V>): boolean
}

Constructor

      
      constructor(trackByFn?: TrackByFunction<V>)

Parameters

trackByFn

TrackByFunction

Optional. Default is undefined.

Properties

Property	Description
`length: number`	Read-only.
`collection: V[] \| Iterable<V> \| null`	Read-only.
`isDirty: boolean`	Read-only.

Methods

forEachItem()

      
      forEachItem(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

forEachOperation()

      
      forEachOperation(fn: (item: IterableChangeRecord<V>, previousIndex: number, currentIndex: number) => void)

Parameters

fn (item: IterableChangeRecord, previousIndex: number, currentIndex: number) => void

forEachPreviousItem()

      
      forEachPreviousItem(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

forEachAddedItem()

      
      forEachAddedItem(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

forEachMovedItem()

      
      forEachMovedItem(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

forEachRemovedItem()

      
      forEachRemovedItem(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

forEachIdentityChange()

      
      forEachIdentityChange(fn: (record: IterableChangeRecord_<V>) => void)

Parameters

fn (record: IterableChangeRecord_) => void

diff()

      
      diff(collection: NgIterable<V>): DefaultIterableDiffer<V> | null

Parameters

collection NgIterable

Returns

DefaultIterableDiffer<V> | null

onDestroy()
onDestroy() `onDestroy()` Parameters There are no parameters.

check()

      
      check(collection: NgIterable<V>): boolean

Parameters

collection NgIterable

Returns

boolean