text: new Vue({
    el: '#exercise',
    data: {
      value: 0
    },
    computed: {
      result: function() {
        return this.value == 10 ? 'done' : 'not there yet';
      }
    },
    watch: {
      value: function(value) {
        vm = this;
        setTimeout(function() {
          vm.value = 0;
        }, 2000);
      }
    }
  });
  