KeyValueChanges

interface

npm Package	@angular/core
Module	import { KeyValueChanges } from '@angular/core';
Source	core/src/change_detection/differs/keyvalue_differs.ts

Interface Overview

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
}

Description

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

Members

forEachItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void

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

forEachPreviousItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void

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

forEachChangedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void

Iterate over all keys for which values have changed.

forEachAddedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void

Iterate over all added items.

forEachRemovedItem(fn: (r: KeyValueChangeRecord<K, V>) => void): void

Iterate over all removed items.