Function createPortal

packages/react-dom/src/shared/ReactDOM.js:56–68

(
  children: ReactNodeList,
  container: Element | DocumentFragment,
  key: ?string = null,
)

}

function createPortal(
  children: ReactNodeList,
  container: Element | DocumentFragment,
  key: ?string = null,
): React$Portal {
  if (!isValidContainer(container)) {
    throw new Error('Target container is not a DOM element.');
  }

  // TODO: pass ReactDOM portal implementation as third argument
  // $FlowFixMe[incompatible-return] The Flow type is opaque but there's no way to actually create it.
  return createPortalImpl(children, container, null, key);
}

export {
  ReactVersion as version,