What for is /dist/vue.js in index.html?

[nolimitdev]

Hi, thanks for great article https://www.freecodecamp.org/news/getting-started-with-vue-single-file-components-using-webpack-2ae078058688/ I would like to ask why <script type="text/javascript" src="/dist/vue.js"></script> is in index.html? It works without it well. It seems that vuejs is included in final /dist/index.js thanks to import Vue from 'vue'; in /src/index.js. So in webpack config is useless entry.vue: 'vue' which causes creating /dist/vue.js ?