How to create object with type alias in TypeScript?

Question

new BaseListState<BrandCriteria, Brand>()

This is working and I add

export type BrandListState = BaseListState<BrandCriteria, Brand>;

then

new BrandListState()

This is not allowed. Any way to fix this problem?

Icecap

You've only declared a type. To new it, you need to have a constructor, too. Have a look at the error 'classes' in the RxJS codebase. They have both a type and a ctor: github.com/ReactiveX/rxjs/blob/… – Kimberlykimberlyn

Answer 1

You're using a Type Alias (see doco here) which doesn't have constructor, so it can't be created with new. You need to create class for this

class BrandListState extends BaseListState<BrandCriteria, Brand> {}

Multiform