How to Highlight potential problems in React application?

StrictMode
-> Identifying components with unsafe lifecycles
-> Warning about legacy string ref API usage
-> Warning about deprecated findDOMNode usage
-> Detecting unexpected side effects
-> Detecting legacy context API
-> Detecting unsafe effects

Strict mode checks are run in development mode only; they do not impact the production build.
For More: https://reactjs.org/docs/strict-mode.html