master

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管理

master

w

V1.11R2

visualization
/
index.html

<!doctype html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <link rel="icon" type="image/svg+xml" href="/vite.svg" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Vite + Vue + TS</title>
</head>

<body>
  <div id="app"></div>
  <script type="module" src="/src/main.ts"></script>
</body>

</html>
<script>

const list = [
  {
    id: '1',
    name: 'A'
  },
  {
    id: '2',
    name: 'B'
  },
  {
    id: '1',
    name: 'C'
  },
  {
    id: '3',
    name: 'D'
  },
  {
    id: '2',
    name: 'E'
  },
  {
    id: '1',
    name: 'Ccc'
  },
];

function sortByIdAndAddAge(list) {
  const idMap = {};
  list.forEach(item => {
    if (!idMap[item.id]) {
      idMap[item.id] = [];
    }
    idMap[item.id].push(item);
  });

  const result = [];
  for (const key in idMap) {
    const items = idMap[key];
    for (let i = 1; i < items.length; i++) {
      items[i].age = 18;
    }
    result.push(...items);
  }

  return result;
}

console.log(sortByIdAndAddAge(list));
</script>