text: var data = {
      items: [{ text: 'Bananas', checked: true }, { text: 'Apples', checked: false }],
      title: 'My Shopping List',
      newItem: ''
  };
  
  new Vue({
      el: '#app',
      data: data,
      methods: {
          addItem: function () {
              var text;
  
              text = this.newItem.trim();
              if (text) {
                  this.items.push({
                      text: text,
                      checked: false
                  });
                  this.newItem = '';
              }
          }
      }
  });