Vue get Window with and height

getWindowSize.vue

new Vue({
  el: '#app',
  data: {
    window: { width: 0, height: 0 }
  },
  created() {
    window.addEventListener('resize', this.handleResize)
    this.handleResize();
  },
  destroyed() {
    window.removeEventListener('resize', this.handleResize)
  },
  methods: {
    handleResize() {
      this.window.width = window.innerWidth;
      this.window.height = window.innerHeight;
    }
  }
});