前端bug汇总1. el-radio-groud @chang事件冒泡 2.Vuex 赋值后修改（.unshift ..

1. el-radio-groud @chang事件冒泡

<label>
    <!--   tab切换栏   -->
    <el-radio-group v-model="current" size="medium"
                  @change="onChildTabChange">
    <el-radio-button :label="1">今日</el-radio-button>
    <el-radio-button :label="2">昨日</el-radio-button>
    <el-radio-button :label="3">7日</el-radio-button>
    <el-radio-button :label="4">本月</el-radio-button>
    <el-radio-button :label="5">年</el-radio-button>
    </el-radio-group>
</label>

原因：外层使用label标签导致点击el-radio-group父元素同样执行change事件。（但一般不会这样子写，这个label是在父组件没注意到。）

2.Vuex 赋值后修改（.unshift ...）报错

//原：
let projectName = this.$store.state.dataInit.projectName // (projectName : [])
projectName.unshift({
  label: '全部',
  value: ''
})

/** 报错：Error in callback for watcher "function() {
 *   return this._data.$$state;
 * }": "Error: [vuex] do not mutate vuex store state outside mutation handlers."
 **/

//修改为
let projectName = Array.from(new Set(this.$store.state.dataInit.projectName));
projectName.unshift({
  label: '全部',
  value: ''
})