javascript - 单击内部按钮时防止单击父 A 标记

Question

我在索引页上的产品卡上遇到问题。在产品卡内部，我有 Vue 组件来渲染表单(数量和添加到购物车按钮)。当我单击“添加到购物车”按钮时，我得到了预期的结果。响应被发送到根 vue 组件，然后我看到产品已添加到购物车的 Toast 通知。但是，当我单击加号、减号按钮或输入字段时，会从父 A 标记触发 href 链接。

如何禁用它？我找到了这个Prevent on click on parent when clicking button inside div

但只有当我将 A 标签放入 vue 组件中时它才有效。我不想在 vue 中放入太多的 html。

        @foreach ($products as $product)
        <a href="{{ $category->fullpath.'/'.$product->sef }}" class="catalog__card">
          <div class="catalog__card-img"><img src="/storage/img/products/{{ $product->mediumpic }}" alt="{{ $product->title }}"></div>

          <div class="card__properties">
            <div class="card__price"><span>{{ $product->price }}<span class="currencySymbol">₽</span></span></div>
            <div class="card__stock">
              @if ( $product->stock > 0 )
              <i class="far fa-check-circle text-success"></i><span class="text-success"><strong> on stock</strong></span>
              @else
                <span><strong> on request</strong></span>
              @endif
            </div>
            <addtocart @added_to_cart="updateCart"></addtocart>
          </div>
          <div class="catalog__card-title"><span>{{ $product->title }}</span></div>
        </a>
        @endforeach

在 Vue 组件中我有以下内容

<template>

  <div class="cart">
    <form method="POST" id="add_to_cart" action="/add_to_cart" @submit.prevent="onSubmit">
      <input type="hidden" name="_token" :value="csrf">
      <div class="quantity">
        <button type="button" class="minus_quantity" v-on:click="minus_quantity" v-long-press="300" @long-press-start="longMinusStart" @long-press-stop="longMinusStop">-</button>
        <input type="number" class="input-text qty text" step="1" min="1" max="9999" name="quantity" value="1" title="Qty" v-model.number="quantity">
        <button type="button" class="plus_quantity" v-on:click="plus_quantity" v-long-press="300" @long-press-start="longPlusStart" @long-press-stop="longPlusStop">+</button>
      </div>
      <button type="submit" name="add-to-cart" class="button-cart"><i class="fas fa-cart-plus"></i><span> order</span></button>
    </form>   
  </div>

</template>


<script>
    import LongPress from 'vue-directive-long-press';

    export default {

        name: "addtocart",

        data: function () {
          return {
            csrf: document.querySelector('meta[name="csrf-token"]').getAttribute('content'),
            quantity: 1,
            plusInterval: null,
            minusInterval: null,
            success: false,
            errors: []
          }
        },

        directives: {
          'long-press': LongPress,
        },


        props: [],


        computed: {
          getName(){
             return this.$store.getters.Name
          }
        },

        methods: {
          // add to cart quantity plus and minus buttons
          // short mouse click event
          parent() { alert('you clicked the parent') },

          minus_quantity() {
            if (this.quantity > 0) {this.quantity -= 1}
          },
          plus_quantity() {this.quantity += 1},
          // long press buttons
          longPlusStart() {
            this.plusInterval = setInterval(() => {
              this.quantity += 1
            }, 100)
          },
          longPlusStop() {
            clearInterval(this.plusInterval)
          },
          longMinusStart() {
            this.minusInterval = setInterval(() => {
              if (this.quantity > 0) {this.quantity -= 1}
            }, 100)
          },
          longMinusStop() {
            clearInterval(this.minusInterval)
          },

          onSubmit() {
            axios.post('/add_to_cart', this.$data)
            .then(this.onSuccess)
            .catch(error => this.errors = error.response.data);
          },
          onSuccess(response) {
            this.success = true;
            this.$emit('added_to_cart', response);
          },

        },

        mounted() {


        },


    }
</script>

Answer 1

您可以对加号、减号按钮使用“v-on:click.stop”指令，而不是“v-on:click”

阅读此内容以获取更多信息 https://v2.vuejs.org/v2/guide/events.html