@angular/forms/signals

MetadataKey

Class

Represents metadata that is aggregated from multiple parts according to the key's reducer function. A value can be contributed to the aggregated value for a field using an metadata rule in the schema. There may be multiple rules in a schema that contribute values to the same MetadataKey of the same field.

API

    
      class MetadataKey<TRead, TWrite, TAcc> {  protected constructor(reducer: MetadataReducer<TAcc, TWrite>, create: ((s: Signal<TAcc>) => TRead) | undefined): MetadataKey<TRead, TWrite, TAcc>;}

constructor

MetadataKey<TRead, TWrite, TAcc>

Use reducedMetadataKey.

@paramreducerMetadataReducer<TAcc, TWrite>

@paramcreate((s: Signal<TAcc>) => TRead) | undefined

@returnsMetadataKey<TRead, TWrite, TAcc>