I have the following snippet: filterCriteria = input.required({ transform: (value: string) => value.toLocaleLowerCase(), alias: 'listCriteria' }); I would like to transform the input with a transform method. As soon as I add types to the input.required part, it does not compile anymore with the following error message: TS2322: Type '(value: string) => string' is not assignable to type 'undefined'. It is reproducible in this Stackblitz example: https://stackblitz.com/edit/signal-inputs-deborahk-rpofup?file=src/snacks/snack-list.component.ts My question is, why does this not work? The background of my question is the fact that my template is not happy with the provided type by filterCriteria. Continue reading...
