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@angular/core

KeyValueDiffer

interface
stable

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

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

    diff

    KeyValueChanges<K, V> | null

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

    @paramobjectMap<K, V>

    containing the new value.

    @returnsKeyValueChanges<K, V> | null

    an object describing the difference. The return value is only valid until the next diff() invocation.

    diff

    KeyValueChanges<string, V> | null

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

    @paramobject{ [key: string]: V; }

    containing the new value.

    @returnsKeyValueChanges<string, V> | null

    an object describing the difference. The return value is only valid until the next diff() invocation.

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