在vuejs中检查字符串插值是否为空

Question

我要检查该值是否为空。

Paid :  <h6 v-for="pai in PaidAmount">
             <b v-if="pai.billno==report.bill_no" >
             {{pai.paid + report.paid}}</b>                                       
         </h6>

如果{{pai.paid + report.paid}}为空，那么我只想打印{{report.paid}}

Answer 1

检查

   <h6 v-for="pai in PaidAmount">
                 <b v-if="pai.billno==report.bill_no" >
                 {{ (pai.paid + report.paid) ? (pai.paid + report.paid) : report.paid  }}
                 </b>            
             </h6>

Reference Taken