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API > @angular/core

DefaultIterableDiffer

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

      
      class DefaultIterableDiffer<V> implements IterableDiffer<V>, IterableChanges<V> {
  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<V>

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_<V>) => void

forEachOperation()

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

forEachPreviousItem()

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

forEachAddedItem()

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

forEachMovedItem()

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

forEachRemovedItem()

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

forEachIdentityChange()

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

diff()

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

DefaultIterableDiffer<V> | null

onDestroy()

 
      
      onDestroy()
Parameters

There are no parameters.

check()

 
      
      check(collection: NgIterable<V>): boolean
Parameters
collection NgIterable<V>
Returns

boolean