JavaScript-da OOP-da klasslarni meros olish ierarxiyasi

O'zining avlodi bo'lgan klassisdan meros olishni amalga oshirish mumkin. Keling, bir misolni ko'rib chiqaylik. Faraz qilaylik, bizda quyidagi ota-klass mavjud:

javascriptclass User {
  setName(name) {
    this._name = name;
  }
  getName() {
    return this._name;
  }
}

Ushbu klassdan quyidagi klass meros oladi:

javascriptclass Student extends User {
  setYear(year) {
    this._year = year;
  }
  getYear() {
    return this._year;
  }
}

Ushbu klassdan yana boshqa klass meros oladi:

javascriptclass StudentProgrammer extends Student {
  setSkill(skill) {
    this._skill = skill;
  }
  getSkill() {
    return this._skill;
  }
}