JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div>{{upvotes}}</div>
  <button v-on:click="upvote"> upvote! </button>
</div>

JavaScript

new Vue({
  el: '.container',
  data: {
    upvotes: 0
  },
  // 메서드는 methods 객체 아래 정의 합니다.
  methods: {
    upvote: function() {
      this.upvotes++;
    }
  }
});