vue中使用v-for报错:You are binding v-model directly to a v-for iteration alias.


 

json数据

[
                {
                    "name": "外观",
                    "value": [
                        "白色",
                        "蓝色",
                        "红色"
                    ],
                    "attr_val_input": ""
                },
                {
                    "name": "尺码",
                    "value": [
                        "39",
                        "40",
                        "41",
                        "42",
                        "43"
                    ],
                    "attr_val_input": ""
                }
            ]
        }

 

这里的item.value 数据是上面json数据中value

 

代码:

<span v-for="(vItem,vIndex) in item.value" :key="vIndex">
          <InputTag v-model="vItem" style="margin-right: 10px" closable @close="handleAttrValClose(index,vIndex)">{{ vItem }}</InputTag>
        </span>

报错:

You are binding v-model directly to a v-for iteration alias. This will not be able to modify the v-for source array because writing to the alias is like modifying a function local variable. Consider using an array of objects and use v-model on an object property instead

 

这个错误是由于在使用v-for循环做一些动态生成的事务时,v-model直接绑定了v-for中的迭代变量导致的

 

需要调整代码为如下才可以

<span v-for="(vItem,vIndex) in item.value" :key="vIndex">
          <InputTag v-model="item.value[vIndex]" style="margin-right: 10px" closable @close="handleAttrValClose(index,vIndex)">{{ vItem }}</InputTag>
        </span>

 

 

 

发布时间 : 2023-03-01,阅读量:1066
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