Excerpt from https://stackoverflow.com/questions/52737078/how-can-you-use-axios-interceptors 1To talk in simple terms, it is more of a checkpoint for every HTTP action. Every API call that has been made, is passed through this interceptor. 23So, why two interceptors? 45An API call is made up of two halves, a request, …

From Command Line: Do it something like this: 1~$ npm view react version And you get the version directly: 1~$ npm view react version 218.0.0 Other means, see https://stackoverflow.com/questions/36994564/how-can-one-tell-the-version-of-react-running-at-runtime-in-the-browser