text: new Vue({
    el: "#app",
    data: {
      selected: "Select Item"
    }
  });
  
  new Vue({
    el: "#app2",
    data: {
      selected: ""
    },
    computed: {
      toStr: function () {
        return this.selected.toString();
      }
    }
  });
  
  var app3_items = [{
    text: "One",
    value: "A"
  }, {
    text: "Two",
    value: "B"
  }, {
    text: "Three",
    value: "C"
  }];
  
  new Vue({
    el: "#app3",
    data: {
      selected: "A",
      options: app3_items
    }
  });
  
  new Vue({
    el: "#app4",
    data: {
      selected: "A",
      options: app3_items
    },
    computed: {
      toStr: function () {
        return this.selected.toString();
      }
    }
  });