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hrsaas-27
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aa.html

<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
<script>
  const obj = {
    store: ["foo", "bar", "baz"],
    [Symbol.iterator]() {
      let index = 0;
      const self = this;
      return {
        next() {
          const result = {
            value: self.store[index], // 当前被迭代到的数据
            done: index >= self.store.length, // 表示迭代是否完成
          };

          index++;
          return result;
        },
      };
    },
  };

  for (const objElement of obj) {
    console.log(objElement)
  }
</script>
</body>
</html>