KeyValueChanges

An object describing the changes in the Map or {[k:string]: string} since last time KeyValueDiffer#diff() was invoked.

API

interface KeyValueChanges<K, V> {
  forEachItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void;
  forEachPreviousItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void;
  forEachChangedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void;
  forEachAddedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void;
  forEachRemovedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void;
}

forEachItem

void

Iterate over all changes. KeyValueChangeRecord will contain information about changes to each item.

@paramfn(r: KeyValueChangeRecord<K, V>) => void

@returnsvoid

forEachPreviousItem

void

Iterate over changes in the order of original Map showing where the original items have moved.

@paramfn(r: KeyValueChangeRecord<K, V>) => void

@returnsvoid

forEachChangedItem

void

Iterate over all keys for which values have changed.

@paramfn(r: KeyValueChangeRecord<K, V>) => void

@returnsvoid

forEachAddedItem

void

Iterate over all added items.

@paramfn(r: KeyValueChangeRecord<K, V>) => void

@returnsvoid

forEachRemovedItem

void

Iterate over all removed items.

@paramfn(r: KeyValueChangeRecord<K, V>) => void

@returnsvoid

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Code licensed under an MIT-style License. Documentation licensed under CC BY 4.0.
https://angular.dev/api/core/KeyValueChanges

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