Static factory method in abstract class

this is typeof Component, and since Component is abstract class, new this is inadmissible. Even if Component wasn't abstract, Button.build() return type wouldn't be properly handled in child classes.

It requires some type hinting, via generic method:

abstract class Component {
    static build<T = Component>(this: { new(): T }) {
       return new this();
    }
}

class Button extends Component { }

const button = Button.build<Button>(); // button: Button