When implementing a custom async validator, the returned observable should emit null for valid inputs and an error object for invalid inputs. This error object typically has a key that describes the error and a ______ value.
- boolean
- description
- message
- string
When implementing a custom async validator in Angular, the error object typically has a key that describes the error (e.g., 'customError') and a message value (a string) that provides details about the specific validation error. This message is useful for displaying error messages to users when their input is invalid.
Loading...
Related Quiz
- In the context of the ControlValueAccessor interface, which method is responsible for registering a callback to be triggered when the control's value changes in the UI?
- Which operator is best suited for handling multiple click events in rapid succession with RxJS in Angular?
- When dealing with an Observable, which method is used to start its execution?
- To apply styles scoped to a particular component and prevent them from affecting other elements outside the component, you would use _____.
- In structural directives, how do you access the container where you want to render the template?