小编s d*_*lop的帖子

这是当前的代码:

  <div class="main-wrap">
    <div class="inner-wrap">
        some content here
        <span>
           <a href="1">test1</a>
        </span>
    </div>

    <div class="inner-wrap">
      some content here
      <span>
        <a href="2">test2</a>
      </span>
    </div>

    <div class="inner-wrap">
      some content here
      <span>
         <a href="3">test3</a>
     </span>
    </div>
 </div>

我要取href attr的a tag范围内span tag,将其插入到整个inner-wrap元素.像这样的东西:

  <div class="main-wrap">
    <div class="inner-wrap">
      <a href="1">
        some content here
        <span>
           <a href="1">test1</a>
        </span>
      </a>
    </div>

    <div class="inner-wrap">
     <a href="2">
      some content here
      <span>
        <a href="2">test2</a>
      </span>
     </a>
    </div>

    <div class="inner-wrap">
     <a href="3">
      some content …

我正在尝试使用API​​制作Apollo GraphQL并react在使用subscriptions-transport-ws库的GraphQL订阅的帮助下更新组件实时.对于删除操作,我收到TypeError: Cannot add/remove sealed array elements错误.这是来自试图从订阅更新数据的react组件的代码.

   componentWillReceiveProps(nextProps) {
        if (!this.subscription && !nextProps.data.loading) {
                let { subscribeToMore } = this.props.data
                this.subscription = [subscribeToMore(
                {
                    document: postDeleted,
                    updateQuery: (previousResult, { subscriptionData }) => {
                     const delPost = subscriptionData.data.postDeleted;
                     const mainData = previousResult.Posts;               

                     let post = mainData.find(post => post.id == delPost.id);
                     let updatedList =  mainData.splice(post, 1);
                     return updatedList;
                    },
                }
                )]
       }
    }