Does React Native Have Hot Reload?

Photo by Shahadat Rahman on Unsplash

Yes, React Native does have hot reload. Hot reload is a feature that allows developers to see changes made to their code in real-time, without having to manually refresh the app. This can be a very helpful feature when developing React Native apps, as it can save a lot of time and frustration.

To enable hot reload in React Native, you can use the following steps:

1. Open your React Native project in your code editor.
2. In the terminal, run the following command:

react-native start

• Once the app is running, open the Dev Menu by shaking your device or pressing Ctrl+M on your keyboard.
• In the Dev Menu, select the “Enable Hot Reloading” option.

Now, when you make changes to your code and save it, the app will automatically reload the changes without having to restart the app.

Here is an example of how to use hot reload in React Native. Let’s say you have a simple React Native app that displays a button. You want to change the text on the button, so you make the following change to your code:

const App = () => {
  return (
    <Button title="Hello, world!" />
  );
};

To see the changes in real-time, you would save the file and then shake your device or press Ctrl+M on your keyboard. The app will automatically reload the changes, and the text on the button will be updated.

Hot reload is a very powerful feature that can save you a lot of time when developing React Native apps. If you’re not already using it, I encourage you to give it a try.

Here are some additional things to keep in mind about hot reload in React Native:

• Hot reload does not work for all changes. For example, if you change the structure of your app’s components, you will need to restart the app.
• Hot reload can sometimes be unstable. If you’re having problems with hot reload, try restarting your device or emulator.
• There are some third-party tools that can improve the performance of hot reload in React Native.

Overall, hot reload is a great feature that can make developing React Native apps much more efficient. If you’re not already using it, I encourage you to give it a try.

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