extendo-error/test-errors/grand-child-error.d.ts

Safely and simply extend native Error with prototype chaining support

import { ChildError } from "./";
export default class GrandChildError extends ChildError {
    functionA(): void;
    functionB(): void;
    readonly propertyA: string;
    readonly propertyB: string;
    fieldA: string;
    fieldB: string;
}