循环表单验证 不能为空

 <FormItem
              :label="item.name"
              prop=""
              v-for="(item, index) in Listnew"
              class="newformItem"
            >
              <Input
                v-model="item.value"
                style=" 340px"
                type="text"
                :placeholder="`请输入${item.name}`"
                :disabled="inputDisabled"
                clearable
              ></Input>
            </FormItem>

 
let _this = this;
      let d = _this.Listnew;  //一个数组
      let iii = d.findIndex((item) => item.value == "");
      if (iii > -1) {
        this.$Message.error("请输入必填项且不能全为空格!");
        _this.isSubmitDisabled = false;
        return false;
      }