# React Tips Learn various tips and tricks for working with our React code. ## Hot Reloading If you followed [this rule](react-guidelines.md#export-the-component-directly-and-create-factory-on-import) about exporting components, and are using the BrowserLoader, you can hot reload any React component. Just turn on the pref `devtools.loader.hotreload`, re-open the devtools, and you should be able to save any React component and instantly see changes. This does not reset the state of your app, so you can quickly se changes in the same context. ## Profiling We need information here about how to use React.addons.Perf to profile the app.