DefaultIterableDiffer

From Get docs
< @angular/coreAngular/docs/8/api/core/defaultiterablediffer


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
Iterable<V> | null Read-Only
isDirty: boolean Read-Only

Methods

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

Parameters
fn (record: IterableChangeRecord_) => void


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

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


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

Parameters
fn (record: IterableChangeRecord_) => void


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

Parameters
fn (record: IterableChangeRecord_) => void


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

Parameters
fn (record: IterableChangeRecord_) => void


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

Parameters
fn (record: IterableChangeRecord_) => void


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

Parameters
fn (record: IterableChangeRecord_) => void


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

Parameters
collection NgIterable
Returns

DefaultIterableDiffer<V> | null


onDestroy()

Parameters

There are no parameters.


check(collection: NgIterable<V>): boolean

Parameters
collection NgIterable
Returns

boolean



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Licensed under the Creative Commons Attribution License 4.0.
https://v8.angular.io/api/core/DefaultIterableDiffer