클래스와 접근 제어자 해부

class Terminator {
    constructor(model, mission) {
      this._model = model;       // public model: string
      this._energy = 100;        // private energy: number
      this.mission = mission;    // protected mission: string
    }
    getModel() { return this._model; }           // public
    getEnergy() { return this._energy; }          // private getter
    consume(n) { this._energy = Math.max(0, this._energy - n); }
    report() { return `[${this._model}] 에너지:${this._energy}% 임무:${this.mission}`; }
  }

  class T1000 extends Terminator {
    constructor() { super('T-1000', 'INFILTRATE'); }
    shapeshift(form) { return `${this.mission} → ${form} 변형`; } // protected 접근
  }

  const t800 = new Terminator('T-800', 'TERMINATE');
  t800.consume(30);
  const t1000 = new T1000();

  [t800.report(), t1000.report(), t1000.shapeshift('JOHN CONNOR')].forEach(msg => {
    const el = document.createElement('div');
    el.style.color = '#888'; el.style.fontSize = '11px'; el.style.marginBottom = '4px';
    el.textContent = msg;
    document.currentScript.parentElement.appendChild(el);
  });