Cordova AdMob Freeプラグインで広告を表示

<template>
    <v-ons-page>
      <v-ons-toolbar>
        <div class="center">{{ title }}</div>
        <div class="right">
          <v-ons-toolbar-button>
            <v-ons-icon icon="ion-navicon, material: md-menu"></v-ons-icon>
          </v-ons-toolbar-button>
        </div>
      </v-ons-toolbar>
      <div style="text-align: center; padding-top:10px">Hello World!</div>
      <p style="text-align: center">
        <v-ons-button @click="banner">Banner</v-ons-button>
        <v-ons-button @click="interstitial">Interstitial</v-ons-button>
      </p>
    </v-ons-page>
</template>
<script>
  export default{
    data() {
      return {
        title: 'My app'
      };
    },
    beforeCreate () {
      this.$ons.ready(function() {
        var admobid = {
          banner: 'ca-app-pub-3940256099942544/6300978111',
          interstitial: 'ca-app-pub-3940256099942544/1033173712'
        }
        // Banner
        admob.banner.config({
          id: admobid.banner,
          isTesting: true,
          autoShow: false,
        })
        admob.banner.prepare()
          .then (() => {
            console.log('banner prepare success!')
          })
          .catch (err => {
            console.log('banner prepare error!', err)
          })

        // Interstitial
        admob.interstitial.config({
          id: admobid.interstitial,
          isTesting: true,
          autoShow: false,
        })
        admob.interstitial.prepare()
          .then (() => {
            console.log('interstitial prepare success!')
          })
          .catch (err => {
            console.log('interstitial prepare error!', err)
          })

      })  // ons.ready

      document.addEventListener('admob.banner.events.LOAD_FAIL', function(event) {
        console.log("LOAD_FAIL banner", event)
      })

      document.addEventListener('admob.interstitial.events.LOAD_FAIL', function(event) {
        console.log("LOAD_FAIL interstitial", event)
      })

      document.addEventListener('admob.interstitial.events.LOAD', function(event) {
        console.log("LOAD", event)
      })

      document.addEventListener('admob.interstitial.events.CLOSE', function(event) {
        console.log("CLOSE", event)

        admob.interstitial.prepare()
      })
    },
    methods: {
      banner () {
        admob.banner.show()
      },
      interstitial () {
        admob.interstitial.show()
      }
    }
  }
</script>