text: const bruce = { 名前: "ブルース" };
  const madeline = { 名前: "マデライン" };
  
  function update(birthYear, occupation) {
      this.生年 = birthYear;
      this.職業 = occupation;
  }
  
  console.log(bruce);
  update.call(bruce, 1949, '歌手');
  console.log(bruce);
  
  console.log(madeline);
  update.call(madeline, 1942, '女優');
  console.log(madeline);