var app = new Vue({
  el: '#app',
  data: {
    urlParams: {},
    book: {}
  },
  methods: {
    urlParse: function() {
      var match,
      pl     = /\+/g,  // Regex for replacing addition symbol with a space
      search = /([^&=]+)=?([^&]*)/g,
      decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); },
      query  = window.location.search.substring(1);
      while (match = search.exec(query))
        this.urlParams[decode(match[1])] = decode(match[2]);
    },
    loadBook: function() {
      console.log(this.urlParams.id);
    }
  },
  created: function() {
    this.urlParse();
  },
  mounted: function() {
    this.loadBook();
  }
})