我正在尝试在 vue js 中的购物车中添加项目，但不确定如何在组件之间传输这些数据，我有一个包含项目信息的数组

Question

我已经阅读了很多建议使用 emit,props 的问题和文章，但我无法弄清楚。下面是我的代码。我有一系列包含产品详细信息的产品，我想将这些项目及其数量添加到购物车组件并在购物车中显示产品名称。

Container.vue

<template>
  <div class="container pb-130">
    <div class="d-flex">
      <product></product>
      <cartData></cartData>
    </div>
  </div>
</template>

<script>
import product from "@/components/product.vue";
import cartData from "../components/cartData.vue";
export default {
  name: "Container",
  components: {
    product,
    cartData,
  },
};
</script>

<style>
.container {
  max-width: 1280px;
  margin: 0 auto;
}
.pb-130 {
  padding-bottom: 130px;
}
</style>

product.vue

<template>
  <div v-for="product in products" :key="product.id" class="product-item">
    <img :src="product.img" alt="Product image" />
    <div class="product-content">
      <div class="product-head">
        <h6 class="product-title">{{ product.name }}</h6>
        <span
          >By<span class="owner">{{ product.owner }}</span></span
        >
      </div>
      <div class="product-footer">
        <div class="price">
          <span>Price</span>
          <span class="val">{{ product.val }}</span>
        </div>
        <div class="btns">
          <button
            class="remove-tocart"
            @click="
              updateCart(product, 'subtract');
              removeFromCart(product);
            "
          >
            -
          </button>
          <span class="quantity">{{ product.quantity }}</span>
          <button
            class="add-tocart"
            @click="
              updateCart(product, 'add');
              addToCart(product);
              takeToCart(product);
            "
          >
            +
          </button>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      products: [
        {
          id: 1,
          name: "One Tribe Black Edition",
          img: "https://enftymart.themenio.com/img/nft-lg.8f26d1a6.jpg",
          val: "14.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
        {
          id: 2,
          name: "One Tribe Black Edition",
          img: "https://miro.medium.com/max/2000/1*AJrLFnuCAD8dE1p1Bg0dbg.jpeg",
          val: "15.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
        {
          id: 3,
          name: "One Tribe Black Edition",
          img: "https://creativereview.imgix.net/content/uploads/2021/09/F4E079D612B9653BEFC4D8D2F39781E39A3025C693B177A61D6C73A5156248EA.jpg?auto=compress,format&q=60&w=1200&h=849",
          val: "14.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
        {
          id: 4,
          name: "One Tribe Black Edition",
          img: "https://coffeebros.com/wp-content/uploads/2021/10/astronaut-background.jpg",
          val: "14.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
        {
          id: 5,
          name: "One Tribe Black Edition",
          img: "https://cloudfront-us-east-1.images.arcpublishing.com/coindesk/5NOWWNNEBRER7BXFZKCYRCA7NA.jpg",
          val: "14.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
        {
          id: 6,
          name: "One Tribe Black Edition",
          img: "https://static01.nyt.com/images/2021/08/15/fashion/TEEN-NFTS--fewocious/TEEN-NFTS--fewocious-videoSixteenByNineJumbo1600.jpg",
          val: "14.99",
          owner: "ZeniconStudio",
          quantity: 0,
        },
      ],
      cartItems: [],
    };
  },
  methods: {
    updateCart(product, updateType) {
      for (let i = 0; i < this.products.length; i++) {
        if (this.products[i].id === product.id) {
          if (updateType === "subtract") {
            if (this.products[i].quantity !== 0) {
              this.products[i].quantity--;
            }
          } else {
            this.products[i].quantity++;
          }
          break;
        }
      }
    },
    addToCart(product) {
      this.cartItems.push(product);
    },
    removeFromCart(product) {
      this.cartItems.splice(this.cartItems.indexOf(product), 1);
    },
    takeToCart(product) {
      this.$emit("receiveInCart", product);
    },
  },
};
</script>

<style>
.product-item {
  position: relative;
  box-shadow: 0 1px 10px rgb(24 24 24 / 7%);
  flex: 1 0 calc(100% / 3 - 60px);
}
.product-item {
  margin: 0 15px 15px;
}
.product-item img {
  height: 245px;
  width: 100%;
  object-fit: cover;
}
.product-item .product-content {
  padding: 15px;
}
.product-item .product-content .product-head {
  margin-bottom: 15px;
  text-align: initial;
}
.product-item .product-content .product-title {
  font-size: 18px;
}
.product-item .product-content .product-head span,
.product-item .product-content .product-footer .price {
  color: #c5c5c5;
  font-size: 14px;
}
.product-item .product-content .product-head .owner,
.product-item .product-content .product-footer .val {
  color: #000;
  font-size: 16px;
  margin-left: 5px;
}
.product-item .product-content .product-footer .val {
  margin-left: 0;
  font-weight: 700;
  position: relative;
}
.product-item .product-content .product-footer .val::before {
  content: "$";
}
.product-item .product-content .product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.product-item .product-content .product-footer .price {
  display: flex;
  flex-direction: column;
}
.add-tocart,
.remove-tocart {
  background-color: #fff;
  border: 1.5px solid #000;
  color: #000;
  text-decoration: none;
  padding: 0px 10px;
  font-size: 20px;
  transition: 0.5s;
  line-height: 30px;
}
.add-tocart:hover,
.remove-tocart:hover {
  color: #fff;
  background-color: #000;
  cursor: pointer;
}
.btns {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 80px;
}
</style>

这是我需要购物车中已添加商品数据的组件。

cartData.vue

<template>
  <div class="cartData" @receiveInCart="storeData">
    <h1>Your cart</h1>
    <span class="title">{{ item.name }}</span>
  </div>
</template>

<script>
export default {
  data() {
    return {
      cartData: [],
    };
  },
  methods: {
    storeData(data) {
      this.cartData = data;
    },
  },
};
</script>

<style>
.cartData {
  flex-basis: 100%;
  margin: 0 15px;
  box-shadow: 0 1px 10px rgb(24 24 24 / 7%);
}
</style>

Answer 1

你可以使用 vuex and dispatch action in product component for changing cart data, and with getter display cart data in cartData component. Here 是带有简单解决方案的 codesandbox。

我正在尝试在 vue js 中的购物车中添加项目，但不确定如何在组件之间传输这些数据，我有一个包含项目信息的数组

I am trying to add items in cart in vue js but not sure how to transfer thoes data between components, I have an array with has items information

javascript

vue.js

components

vue-component

shopping-cart