How do you include Vue.js in a web page?

You add Vue to a page with a <script> tag pointing at the Vue.js CDN (or a downloaded local copy).

Via CDN (recommended for learning):

<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.global.js"></script>

For production, specify a version:

<script src="https://cdn.jsdelivr.net/npm/vue@3.2.31"></script>

Two versions exist: development (with warnings) and production (minified).