javascript - 使用 for 循环遍历数组和 console.log 中的对象，看是否看过电影

Question

我刚开始学习编码。使用 for 循环和 forEach 有点困难。我的代码由于某种原因无法正常工作，而且我不知道错误是什么。有人看到我需要修复的任何东西吗？

---

var myMovies = [

  {name: "Gladiator",
   rating: 5,
   seen: true
  },
  {name: "Vanilla Sky",
  rating: 4.5,
  seen: true
  },
  {name: "Beautiful Mind",
  rating: 5,
  seen:true
  },
  {name: "The Happytime Murders",
   rating: 3.5,
   seen: false
  }
];
  var movies = myMovies;
for(i = 0; i < 3; i ++)
  if(movies.seen){
  console.log("You have seen " + movies.name + "-" + movies.rating);
}else
console.log("You haven't seen " + movies.name + "-" + movies.rating);

Answer 1

你的问题是你的 myMovies 和 movies 变量是数组，你需要显示你想要的索引。这是您的固定代码:

var myMovies = [

  {name: "Gladiator",
   rating: 5,
   seen: true
  },
  {name: "Vanilla Sky",
  rating: 4.5,
  seen: true
  },
  {name: "Beautiful Mind",
  rating: 5,
  seen:true
  },
  {name: "The Happytime Murders",
   rating: 3.5,
   seen: false
  }
];
var movies = myMovies;
for(i = 0; i < movies.length; i++) {
  if(movies[i].seen){
  console.log("You have seen " + movies[i].name + "-" + movies[i].rating);
}else
console.log("You haven't seen " + movies[i].name + "-" + movies[i].rating);