Data Class Code Smell

dataclass.ts

// Data Class

class Address {
  public street: string;
  public city: string;
  public state: string;
  public zip: string;
  public coordinates: Array<number>;

  constructor(street: string, city: string, state: string, zip: string, coordinates: Array<number>) {
    this.street = street;
    this.city = city;
    this.state = state;
    this.zip = zip;
    this.coordinates = coordinates;
  }

 
}

class X {
  public address = new AddressFixed('123 Main St', 'Anytown', 'CA', '12345', [1, 2]);

  public buildAddress(): string { 
    return this.address.getStreet() + ' ' + this.address.getCity() + ' ' + this.address.getState() + ' ' + this.address.getZip();
  }
}

// Data Class Fixed 

class AddressFixed {
  private street: string;
  private city: string;
  private state: string;
  private zip: string;
  private coordinates: Array<number>;

  constructor(street: string, city: string, state: string, zip: string, coordinates: Array<number>) {
    this.street = street;
    this.city = city;
    this.state = state;
    this.zip = zip;
    this.coordinates = coordinates;
  }

  // Encapsulate Fields
  public getStreet(): string {
    return this.street;
  }

  public getCity(): string {
    return this.city;
  }

  public getState(): string {
    return this.state;
  }

  public getZip(): string {
    return this.zip;
  }

  // Move and Extract Method
  public buildAddress(): string { 
    return this.getStreet() + ' ' + this.getCity() + ' ' + this.getState() + ' ' + this.getZip();
  }


  // Encapsulate Collection
  public getCoordinates(): string {
    return this.coordinates[0].toString() + ' ' + this.coordinates[1].toString();
  }

  public addCoordinate(coordinate: number): void { 
    this.coordinates.push(coordinate);
  }

  public removeCoordinate(): void {
    this.coordinates.pop();
  }

}