Vue Js Submit Array

<!DOCTYPE html>
<html lang="en">
<head>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
  <div id="app">
    <h3>Vue Js Submit Array</h3>
    <form @submit.prevent="submitArray">
      <input v-model="newValue" type="text" placeholder="Enter a value">
      <button type="submit">Submit</button>
      <p v-if="errorMessage" class="error-message">{{ errorMessage }}</p>
    </form>
    <ul v-if="myArray.length">
      <li v-for="item in myArray" :key="item.id">
        {{ item.id }}: {{ item.value }}
      </li>
    </ul>
    <p v-else>No items submitted yet.</p>

</div>

h3 {
      margin-bottom: 10px;
      color: #333;
    }

form {
      margin-bottom: 10px;
    }

input[type="text"] {
      padding: 10px;
      width: 250px;
      border: 1px solid #ccc;
      border-radius: 5px;
      font-size: 14px;
    }

button[type="submit"] {
      padding: 10px 15px;
      background-color: #4caf50;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 14px;
    }

.error-message {
      color: red;
      margin-top: 5px;
    }

ul {
      margin-top: 10px;
      padding-left: 0;
    }

li {
      list-style: none;
      margin-bottom: 5px;
      background-color: #f5f5f5;
      padding: 10px;
      border-radius: 5px;
      color: #333;
      font-size: 14px;
    }

li:hover {
      background-color: #e0e0e0;
    }
  </style>

</body>

</html>