Теория: Свойства параметров

class SomeClass {
  constructor(public one: number, private two: string) {}

  get three(): string {
    return `${this.one} ${this.two}`
  }
}

class SomeClass {
  public one: number

  private two: string

  constructor(one: number, two: string) {
    this.one = one
    this.two = two
  }

  get three(): string {
    return `${this.one} ${this.two}`
  }
}