class Primary {
    add(obj) {
      console.log('primary.add obj = ', obj);
      console.log('primary.add this = ', this);
    }
  }

  class Secondary extends Primary {
    constructor(arr) {
      super();
      this.arr = arr;
    }
    azaza(obj) {
      console.log('azaza', obj)
      super.add.apply(this.arr[0], [obj]);  
    }
  }
  const secondary = new Secondary([{ name: 'vasya' }]);
  const obj = { family: false }
  secondary.azaza(obj);