Question 1

How to set up React Hot Loader with webpack from scratch?

Accepted Answer

Add 'react-hot-loader/babel' to your Babel config, mark the root component with hot() from 'react-hot-loader/root', and include 'react-hot-loader/patch' in webpack entry or import it before React. Detailed steps are in the 'Getting started' section of the README.

Question 2

React Hot Loader vs Fast Refresh: which is better in 2024?

Accepted Answer

React Fast Refresh is the modern, built-in solution recommended by the React team, offering better performance and integration. React Hot Loader is deprecated and only useful for legacy projects where Fast Refresh isn't supported, like with older bundlers.

Question 3

Why does React Hot Loader cause hooks to lose state?

Accepted Answer

Hook reloading depends on dependency arrays and order; changes can trigger remounts or errors. Using @hot-loader/react-dom and setting config options like reloadHooks can mitigate this, but it's not foolproof, as noted in the hook support limitations.

Question 4

How to migrate an existing project from React Hot Loader to Fast Refresh?

Accepted Answer

Remove React Hot Loader dependencies and Babel plugins, then enable Fast Refresh via your bundler's plugin (e.g., for webpack) or use built-in support in tools like Create React App. The README lists compatible environments and suggests checking for updates.

Question 5

Does React Hot Loader work with TypeScript without ejecting?

Accepted Answer

Yes, but it requires configuring Babel to handle TypeScript with the react-hot-loader/babel plugin, and you might need additional tools like fork-ts-checker-webpack-plugin for type safety, as described in the TypeScript recipe.

Question 6

Can I safely use React Hot Loader in production builds?

Accepted Answer

The tools have a minimal footprint and are safe if configured correctly with NODE_ENV=production, but since it's deprecated, it's better to migrate to Fast Refresh for long-term stability and support.

React JS Hot loader Boilerplates

What is React JS Hot loader Boilerplates?

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