<template>
  <div id="app">
    <div id="nav">
      <router-link to="/">Home</router-link> |
      <router-link to="/about">About</router-link> |
      <router-link to="/halloween">Halloween Count UP</router-link>
    </div>
    <router-view/>
  </div>
</template>

    {
      path: '/halloween',
      name: 'halloween',
      // Count up Page
      component: () => import('../views/HalloweenCountUp.vue')
    }

import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

export default new Vuex.Store({
  state: {
    countNumber: 0
  },
  mutations: {
    countup(state)
    {
      state.countNumber++
    }
  },
  actions: {
    countup: ({ commit }) => {
      setTimeout(() =>{
        commit('countup')
      }, 5000)
    }
  }
})

<template>
  <div class="halloween">
    <center>
            <div class="titleStyle">CLI Vue.js カウントアップ</div>
            <div class="sytle001">{{$store.state.countNumber}}回</div><br>
      <img v-on:click="click_count_up" type="image" class="halloweenButton" src="../assets/halloween_btn.png">
    </center>
  </div>
</template>

<script>
export default {
  methods: {
    click_count_up() {
      this.$store.commit("countup");
    }
  }
};
</script>

npm run build

npm run serve

firebase deploy