options_basic_2.ts

type Material = 'wood' | 'brick' | 'steel'

class House {
  private rooms: number
  private floors: number
  private material: Material
  private bathrooms: number
  private squareFootage: number
  private address: string
  private constructionDate: Date

  constructor(rooms: number, floors: number, material: Material, squareFootage: number, address: string, constructionDate: Date) {
    if (rooms < 1) {
      throw new Error('invalid number of rooms!')
    }
    this.rooms = rooms
    if (floors < 1) {
      throw new Error('invalid number of floors!')
    }
    this.floors = floors
    this.material = material
    // etc ... 
  }
}