justRenderA wrapper over ReactDOM.render. You need to provide the element you want to render.
justRender(reactElement: React.Element, rootId: String): undefined : function
reactElement - required - The root React element to render.rootId - id of the HTML element where the reactElement should be rendered. If the element is not found, justRender will create it for you, with the ID defaulting to "union".justUnmountComponentAtNodeWrapper over ReactDOM.unmountComponentAtNode. You need to provide the element you want to unmount.
justUnmountComponentAtNode(reactElement: React.Element, rootId: String): undefined : function
reactElement - required - The root React element to unmount.rootId - id of the HTML element where reactElement should be unmounted. Defaults to "union".