Is it possible to make the membervar of class Parent generic instead of type any, while still retaining the ability to switch provider classes without having to update all components that rely on class Parent? For example, if class ChildB implements a different type for class Parent than class ChildA.
export abstract class Parent {
membervar: any;
}
export class ChildA extends Parent {
constructor() {
super();
this.membervar = ObjectA();
}
}
export class ChildB extends Parent {
constructor() {
super();
this.membervar = ObjectB();
}
}
In my app.module.ts, I can change the provider class by:
...
providers: [ { provide: Parent, useClass: ChildA } ]
...
There are components in the application that depend on the above structure:
export class SomeComponent {
constructor(private aService: Parent) {
}
}
export class SomeOtherComponent...
constructor(private aService: Parent)...