Parent receive events

App.vue

<template>
  <my-button-counter v-on:clicked="updateClickedNum"></my-button-counter>
</template>

<script>
import MyButtonCounter from "./MyButtonCounter.vue";
export default {
  data() {
    return {
      clicked_num: 0
    }
  },
  methods: {
    updateClickedNum(e) {
      this.clicked_num = e;
    }
  },
  components: {
    MyButtonCounter
  }
}
</script>

<style>
</style>