在上面的答案中，scrollIntoView(…)方法有两个主要问题:

it's semantically incorrect, as it causes the entire page to scroll if your parent element is scrolled outside the window boundaries. The browser literally scrolls anything it needs to in getting the element visible. in a functional component using useEffect(), you get unreliable results, at least in Chrome 96.0.4665.45. useEffect() gets called too soon on page reload and the scroll doesn't happen. Delaying scrollIntoView with setTimeout(..., 0) fixes it for page reload, but not first load in a fresh tab, at least for me. shrugs

这是我一直在使用的解决方案，它很可靠，而且更兼容旧的浏览器:

function Chat() {
   const chatParent = useRef<HTMLDivElement(null);

   useEffect(() => {
      const domNode = chatParent.current;
      if (domNode) {
         domNode.scrollTop = domNode.scrollHeight;
      }
   })
   return (
      <div ref={chatParent}>
         ...
      </div>
   )
}

另一个值得考虑的选择是react scroll组件。

这是Kent C. Dodds教授的useLayoutEffect的一个很好的用例。

https://kentcdodds.com/blog/useeffect-vs-uselayouteffect

如果你的效果正在改变DOM(通过一个DOM节点ref)，并且DOM突变将改变DOM节点的外观，在它被呈现和你的效果改变它之间，那么你不想使用useEffect。

在我的情况下，我在一个div的底部动态生成元素，所以我必须添加一个小超时。

   const bottomRef = useRef<null | HTMLDivElement>(null);

    useLayoutEffect(() => {
        setTimeout(function () {
            if (bottomRef.current) bottomRef.current.scrollTop = bottomRef.current.scrollHeight;
        }, 10);
    }, [transactionsAmount]);

Reference your messages container. <div ref={(el) => { this.messagesContainer = el; }}> YOUR MESSAGES </div> Find your messages container and make its scrollTop attribute equal scrollHeight: scrollToBottom = () => { const messagesContainer = ReactDOM.findDOMNode(this.messagesContainer); messagesContainer.scrollTop = messagesContainer.scrollHeight; }; Evoke above method on componentDidMount and componentDidUpdate. componentDidMount() { this.scrollToBottom(); } componentDidUpdate() { this.scrollToBottom(); }

这是我如何在我的代码中使用这个:

 export default class StoryView extends Component {

    constructor(props) {
        super(props);
        this.scrollToBottom = this.scrollToBottom.bind(this);
    }

    scrollToBottom = () => {
        const messagesContainer = ReactDOM.findDOMNode(this.messagesContainer);
        messagesContainer.scrollTop = messagesContainer.scrollHeight;
    };

    componentDidMount() {
        this.scrollToBottom();
    }

    componentDidUpdate() {
        this.scrollToBottom();
    }

    render() {
        return (
            <div>
                <Grid className="storyView">
                    <Row>
                        <div className="codeView">
                            <Col md={8} mdOffset={2}>
                                <div ref={(el) => { this.messagesContainer = el; }} 
                                     className="chat">
                                    {
                                        this.props.messages.map(function (message, i) {
                                            return (
                                                <div key={i}>
                                                    <div className="bubble" >
                                                        {message.body}
                                                    </div>
                                                </div>
                                            );
                                        }, this)
                                    }
                                </div>
                            </Col>
                        </div>
                    </Row>
                </Grid>
            </div>
        );
    }
}

我喜欢这样做。

componentDidUpdate(prevProps, prevState){
  this.scrollToBottom();
}

scrollToBottom() {
  const {thing} = this.refs;
  thing.scrollTop = thing.scrollHeight - thing.clientHeight;
}

render(){
  return(
    <div ref={`thing`}>
      <ManyThings things={}>
    </div>
  )
}

 const scrollingBottom = () => {
    const e = ref;

    e.current?.scrollIntoView({
      behavior: "smooth",
      block: "center",
      inline: "start",
    });
  };

 useEffect(() => {
    scrollingBottom();
  });

<span ref={ref}>{item.body.content}</span>