循环 element.io 表中的值列表。我需要显示权重列表的总和。我无法总结所有的重量值。
var val= [
{
"NmVehiclePlanning.deliveryBranch": "Madurai",
"NmVehiclePlanning.deliveryCity": "Madurai",
"NmVehiclePlanning.weight": 30106
},
{
"NmVehiclePlanning.deliveryBranch": "Madurai",
"NmVehiclePlanning.deliveryCity": "Virudhunagar",
"NmVehiclePlanning.weight": 3498
},
{
"NmVehiclePlanning.deliveryBranch": "Madurai",
"NmVehiclePlanning.deliveryCity": "KANYAKUMARI",
"NmVehiclePlanning.weight": 500
}, ]
以上数据是我的json数据。需要对所有进行求和（关键名称：NmVehiclePlanning.weight）
<el-table-column label="weight">
<template slot-scope="scope">
<span v-for="data in scope.row.details">
{{ data['NmVehiclePlanning.weight'] }}
</span>
</template>
</el-table-column>
收到的值为
30106 3498 500
预期值为
34104
试试这个。希望它会起作用
<el-table-column label="weight">
<template slot-scope="scope">
{{ calculateSum(scope.row.details) }}
</template>
</el-table-column>
在您的脚本中添加此函数。
calculateSum(val){
var sum = 0;
for(let value in val){
sum += val[value]['NmVehiclePlanning.weight']
}
return sum;
},
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