小编jcs*_*977的帖子

我试图使用我的标题中的链接滚动到我的应用程序的不同部分与scrollIntoView.标题是App的孩子.我收到一个TypeError说我试图保存id的变量是未定义的.有人可以帮我确定我做错了什么吗？我想我可能不得不使用ComponentDidMount,但我不知道该怎么做,如果这甚至是修复.我将不得不用我的所有标题链接执行此操作.

// ERROR bundle.js:152 Uncaught TypeError:无法在atClick(bundle.js:19957)的Object.actScrollLocations(bundle.js:152)处读取属性'scrollIntoView'为null.在Object.ReactErrorUtils.invokeGuardedCallback(bundle.js: 4660)在executeDispatch(bundle.js:4460)的executeDispatch(bundle.js:4483),executeDispatchesAndRelease(bundle.js:3913),executeDispatchesAndReleaseTopLevel(bundle.js:3924),位于forEachAccumulated(bundle.forEach)的executeDispatchesAndReleaseTopLevel(bundle.js:3924) .js:4760)at Object.processEventQueue(bundle.js:4129)///////

//应用

class App extends Component {
  constructor(props) {
    super(props);

    this.closeModal = this.closeModal.bind(this);
    this.openModal = this.openModal.bind(this);
    this.getScrollLocations = this.getScrollLocations.bind(this);

    this.state = {
      open: false,
      projects: Service,
      selectedProject: Service[0]
    }
  }

  closeModal(event) {
    this.setState({open: false});
  }

  openModal(project) {
    this.setState({
      open: true,
      selectedProject: project
    });
  }
    ///////////// scroll function //////////////
  getScrollLocations() {
    const whatIDo = document.getElementById('.whatIdo');
    console.log(whatIDo)
    whatIDo.scrollIntoView();
  }

  render() {
    const show = {
      display: 'block'
    };
    const hide = {
      display: 'none' …