pauloafpjunior

namespace Domain {

    export class Hero {
        private constructor(private _name: string) { }
        get name(): string { return this._name; }

        static create(name: string): [Hero, Error] {
            if (!name || name.trim().length < 3 || name.trim().length > 100) {
                return [null, new InvalidNameError(name)]
            }

pauloafpjunior

// Value object
class CityName {

    static readonly MIN_LEN_NAME: number = 3
    static readonly MAX_LEN_NAME: number = 100

    private constructor(private _name: string) { }

    // Factory method with validation rules
    static create(name: string): [CityName, Error] {