What DOM event updates a ReactJS app and how can you force update with plain Javascript

Question

I am very new to ReactJS and was wondering the following: On what DOM event, if there even is a standard, does react update the contents of the root container or app container? Is there a way to force this event via a plain Javascript event dispatch? An example of website would be WhatsApp Web. It loads a spinner loader and some event loads to fill out the rest of the elements once loaded.

Answer 1

you can basically call ReactDom.render() on root element to rerender everything, its very fast as pointed out here by Dan himself

https://twitter.com/dan_abramov/status/691301224541503488?lang=en