error3/dist/types/index.d.ts

Error3 is proper JS error implementation. It supports error codes, message formatting (e.g. i18n) and nested errors.

interface IError3 extends Error {
    readonly code: string | number;
    readonly details: object;
    readonly errors: Error[];
}
declare type PlainError = {
    code: string | number;
    message: string;
    details: object;
    errors: PlainError[] | object[];
};
declare abstract class Error3<Details, Errors> extends Error implements IError3 {
    readonly code: string | number;
    readonly name: string;
    readonly details: object;
    readonly errors: Error[];
    constructor(details: Details, errors: Errors);
    abstract format(_details: Details, _errors: Errors): string;
    valueOf(): PlainError;
    toString(): string;
    toJSON(): PlainError;
}

export = Error3;