vue for start at index

<!-- index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <title>Your Vue App</title>
</head>
<body>
  <div id="app"></div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
  <script src="/path/to/your/app.js"></script>
</body>
</html>
// app.js
new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!'
  },
  template: '<div>{{ message }}</div>'
});