Class Based component using store module

app.component.vue

<template>
  <div>
    {{getCount}}
    <br/>
    <button @click="increase">-</button>
    <button @click="decrease">+</button>
  </div>
</template>

<script lang="ts">
import Vue from 'vue';
import { Component } from 'vue-property-decorator';
import Counter from '../store/module/counter'
@Component({})
export default class AppComponent extends Vue {

 get getCount() {
 return Counter.getCounter;
 }
 
 increase() {
 Counter.increment();
 }
 
 decrease() {
 Counter.decrement();
 }
}
</script>