Function constructor

src/Collapse.js:58–72

(props)

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

    this.state = {
      dimension: null,
    };

    this.nodeRef = props.innerRef || React.createRef();

    ['onEntering', 'onEntered', 'onExit', 'onExiting', 'onExited'].forEach(
      (name) => {
        this[name] = this[name].bind(this);
      },
    );
  }

  onEntering(_, isAppearing) {
    const node = this.getNode();