Simple click function to increase and decrease values of two buttons using Vue js

 Add button inside template component

<button @click="increment" >{{count}}</button>

<button @click="decrement" >{{dcount}}</button>

Inside script tags add the following

<script>

export default {

  data() {

    return {

      count: 0,

      dcount: 100

    }

  },

  methods: {

    increment() {

      // update component state

      this.count++

    },

    decrement() {

        this.dcount--

    }

  }

}

</script>