vue 4 code example

Example 1: vue cli upgrade

npm update -g @vue/cli
# OR
yarn global upgrade --latest @vue/cli

Example 2: vuejs

var app = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!'
  }
})

Example 3: vue js

<!-- development version, includes helpful console warnings -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>