KeyValueDiffer

From Get docs
< @angular/coreAngular/docs/10/api/core/keyvaluediffer


KeyValueDiffer

interface

A differ that tracks changes made to an object over time.

interface KeyValueDiffer<K, V> {
  diff(object: Map<K, V>): KeyValueChanges<K, V> | null
}

Methods

Compute a difference between the previous state and the new object state.

diff(object: { [key: string]: V; }): KeyValueChanges<string, V> | null

Parameters
object object containing the new value.
Returns

KeyValueChanges<string, V> | null: an object describing the difference. The return value is only valid until the next diff() invocation.



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https://v10.angular.io/api/core/KeyValueDiffer