Question

// Scrrenshot

<div  v-for='(place) in qury.visitPlaces' :key="place.name">

            <div class="column is-4 is-narrow">
            <b-field label="Nights">
            <b-input type="text" v-model="place.nights" placeholder="e.g. Bandra" required></b-input>
            </b-field>
            </div>

         <div class="card hotel-card" v-for='(hotel, index) in place.hotels' :key="hotel.name">
<header class="card-header">
      <b-tooltip label="Delete Hotel" position="is-left">
     <a  class="card-header-icon" aria-label="Delete Hotel" @click="removeHotel(index)">
                            <span class="icon">
                               <i class="far fa-trash-alt"></i>
                            </span>
                         </a> 
                      </b-tooltip> 
                 </header>
               </div> </div>

// Javascript

 removeHotel(index) {
          console.log(index);
          this.qury.hotels.splice(index, 1);
          //this.priceList = {};
        },

未捕获的类型错误：无法读取未定义的属性'splice'。这些错误继续发生。请帮助我。

Answer 1

这意味着this.qury.hotels未定义。因此，如果出现以下情况，请添加

OtherInfo ::= SEQUENCE {
       keyInfo KeySpecificInfo,
       partyAInfo [0] OCTET STRING OPTIONAL,
       suppPubInfo [2] OCTET STRING
     }

KeySpecificInfo ::= SEQUENCE {
    algorithm OBJECT IDENTIFIER,
    counter OCTET STRING SIZE (4..4) }

Answer 2

您曾期望this.qury.hotels是一个数组，但是在调用函数时并未将其定义为一个。您可以使用静态.isArray方法来测试变量是否为数组

function removeHotel(index) {
    if(Array.isArray(this.qury.hotels) && this.qury.hotels.length > 0) {
        this.qury.hotels.splice(index, 1);
    }
}

未捕获的TypeError：无法读取未定义的属性'splice'

2 个答案: