On this page
KeyValueChangeRecord
interface
Record representing the item change information.
interface KeyValueChangeRecord<K, V> {
  key: K
  currentValue: V | null
  previousValue: V | null
}
   Properties
| Property | Description | 
|---|---|
key: K | 
       Read-Only  Current key in the Map.  | 
      
currentValue: V | null | 
       Read-Only  Current value for the key or   | 
      
previousValue: V | null | 
       Read-Only  Previous value for the key or   | 
      
© 2010–2021 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
 https://v12.angular.io/api/core/KeyValueChangeRecord