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react-hot-loader
Advanced tools
react-hot-loader is a tool that allows React components to be live reloaded without losing their state. This is particularly useful during development as it speeds up the feedback loop by allowing developers to see changes in real-time without refreshing the entire application.
Hot Module Replacement
This feature allows you to wrap your root component with the `hot` function from react-hot-loader. This enables Hot Module Replacement (HMR) for the component, meaning that changes to the component will be applied in real-time without a full reload.
import { hot } from 'react-hot-loader/root';
import App from './App';
const HotApp = hot(App);
export default HotApp;
Preserve Component State
By using react-hot-loader, the state of your React components is preserved even when the component code is updated. This is particularly useful for maintaining the current state of your application during development.
import { hot } from 'react-hot-loader/root';
import App from './App';
const HotApp = hot(App);
export default HotApp;
Error Handling
react-hot-loader provides better error handling during development. When an error occurs, it does not break the entire application but instead shows the error in the console, allowing you to fix it without losing the application state.
import { hot } from 'react-hot-loader/root';
import App from './App';
const HotApp = hot(App);
export default HotApp;
react-refresh is a more modern alternative to react-hot-loader, developed by the React team. It provides a more integrated and reliable hot reloading experience by leveraging React's new Fast Refresh feature. It is recommended for use with Create React App and other modern React setups.
webpack-hot-middleware is a middleware for Webpack that enables hot module replacement (HMR) for any JavaScript application. While it is not specific to React, it can be used in conjunction with React to achieve similar hot reloading capabilities.
react-hot-toast is a lightweight package for showing toast notifications in React applications. While it does not provide hot reloading, it is often used in development environments to display real-time notifications, which can complement the hot reloading experience.
This is a stable for daily use in development implementation of React live code editing.
Get inspired by a demo video and try the live demo.
Use one of the starter kits for your next React project.
React Hot Loader was demoed together with Redux at React Europe.
Watch Dan Abramov's talk on Hot Reloading with Time Travel.
npm install --save-dev react-hot-loader
If you want to try hot reloading in a new project, try one of the starter kits, React Hot Boilerplate being the most minimal one.
To use React Hot Loader in an existing project, you need to
These steps are covered by the walkthrough.
If you'd rather stay with Browserify, check out LiveReactload by Matti Lankinen.
Redux is a Flux implementation that supports hot reloading of everything out of the box. Read The Evolution of Flux Frameworks for some context around its creation.
You can use React Hot Loader to tweak a React Native application. Check out react-native-webpack-server by Michael Johnston.
If something doesn't work, in 99% cases it's a configuration issue. A missing option, a wrong path or port. Webpack is very strict about configuration, and the best way to find out what's wrong is to compare your project to an already working setup, such as React Hot Boilerplate, bit by bit. We're also gathering Troubleshooting Recipes so send a PR if you have a lesson to share!
Docs are in a bit of a flux right now because I'm in the process of updating everything to document the major 1.0 release.
If you just learned about React Hot Loader and want to find out more, check out the walkthrough and then try one of the starter kits.
If you've been with us for a while, read 1.0 release notes and migration guide.
Watch the repo to stay tuned!
3.0.0-beta.6
patch
and AppContainer
if no module.hot
available, so it doesn't break people using NODE_ENV=test
. (#398)FAQs
Tweak React components in real time.
The npm package react-hot-loader receives a total of 572,802 weekly downloads. As such, react-hot-loader popularity was classified as popular.
We found that react-hot-loader demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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