Function unmountComponentAtNode

docs/external/js/react-dom.development.js:24992–25043

(container)

    return legacyRenderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
  }
  function unmountComponentAtNode(container) {
    if (!isValidContainer(container)) {
      {
        throw Error( "unmountComponentAtNode(...): Target container is not a DOM element." );
      }
    }

    {
      var isModernRoot = isContainerMarkedAsRoot(container) && container._reactRootContainer === undefined;

      if (isModernRoot) {
        error('You are calling ReactDOM.unmountComponentAtNode() on a container that was previously ' + 'passed to ReactDOM.createRoot(). This is not supported. Did you mean to call root.unmount()?');
      }
    }

    if (container._reactRootContainer) {
      {
        var rootEl = getReactRootElementInContainer(container);
        var renderedByDifferentReact = rootEl && !getInstanceFromNode$1(rootEl);

        if (renderedByDifferentReact) {
          error("unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.');
        }
      } // Unmount should not be batched.


      unbatchedUpdates(function () {
        legacyRenderSubtreeIntoContainer(null, null, container, false, function () {
          // $FlowFixMe This should probably use `delete container._reactRootContainer`
          container._reactRootContainer = null;
          unmarkContainerAsRoot(container);
        });
      }); // If you call unmountComponentAtNode twice in quick succession, you'll
      // get `true` twice. That's probably fine?

      return true;
    } else {
      {
        var _rootEl = getReactRootElementInContainer(container);

        var hasNonRootReactChild = !!(_rootEl && getInstanceFromNode$1(_rootEl)); // Check if the container itself is a React root node.

        var isContainerReactRoot = container.nodeType === ELEMENT_NODE && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;

        if (hasNonRootReactChild) {
          error("unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.');
        }
      }

      return false;
    }
  }

  function createPortal(children, containerInfo, // TODO: figure out the API for cross-renderer implementation.
  implementation) {