<div id="app">
  <div class="p-5">
    <h3>Computed 常見技巧 - 搜尋</h3>
    <input type="search" v-model="search">
    <ul>
      <li v-for="item in filterProducts">
        {{ item.name }} / {{ item.price }}
      </li>
    </ul>
    <hr>
    <p v-pre>{{filterProducts}}的內容</p>
    {{filterProducts}}
  </div>
</div>
const App = {
  data() {
    return {
      search:'',
      products: [
        {
          name: '蛋餅',
          price: 30,
          vegan: false
        },
        {
          name: '飯糰',
          price: 35,
          vegan: false
        },
        {
          name: '小籠包',
          price: 60,
          vegan: false
        },
        {
          name: '蘿蔔糕',
          price: 30,
          vegan: true
        },
      ],
      carts: [],
      sum: 0,
    }
  },
  methods: {
    addToCart(product) {
      this.carts.push(product)
    },
  },
  computed: {
    total() {
      let total = 0;
      this.carts.forEach(item => {
        total += item.price;
      });
      return total;
    },
    filterProducts(){
      return this.products.filter(item=>{
        return item.name.match(this.search)
      })
    }
  }
};
Vue.createApp(App).mount('#app');
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External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.0.2/css/bootstrap.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/js/bootstrap.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/vue/3.2.37/vue.global.prod.min.js