【报Bug】v-if 无法获取函数返回值

template 内使用 methods,v-if 无法获取函数返回值

<view  v-if="isSingleSpec(item1)" >  
<text>11</text>  
</view>  

isSingleSpec(food) {  
      // 判断是否是单规格  
    console.log("food.Name: ",food.Name);  
      if (food.Specs.length === 1) {  
    console.log("food.Attributes: ",food.Attributes);  
        for (let attr of food.Attributes) {  
    console.log("attr.Values.length: ",attr.Values.length);  
          if (attr.Values.length === 1) {  
            return true;  
          }  
        }  
    console.log("utils.isEmptyArray(food.Attributes): ",utils.isEmptyArray(food.Attributes))  
        return utils.isEmptyArray(food.Attributes);  
      }  
      return false;  
    },

IDE运行环境说明

[HBuilderX]
[## 1.8.2.20190401]

uni-app运行环境说明

[运行端是微信小程序]