If you’re working on a Webpack project and want to leverage the power of Immer to simplify your state management, this guide will show you how to integrate Immer seamlessly into your Webpack setup.

Step 1: Install Immer

To get started, you’ll need to install Immer as a dependency in your project. Open your terminal and navigate to your project directory, then run the following command:

npm install immer

Step 2: Configure Webpack

Next, we need to configure Webpack to handle Immer’s immerable objects correctly. In your Webpack configuration file, locate the rules section related to JavaScript or TypeScript compilation.

Add the following rule to your configuration to ensure that Immer’s immerable objects are properly handled:

module: {
  rules: [
    {
      test: /\.(js|jsx|ts|tsx)$/,
      exclude: /node_modules/,
      use: [
        {
          loader: 'babel-loader',
          options: {
            plugins: ['@babel/plugin-transform-react-jsx'],
          },
        },
      ],
    },
  ],
}

Make sure to add this rule within the “module” section of your Webpack configuration file.

Step 3: Import and Use Immer

Now that your Webpack project is configured to work with Immer, you can start using it in your code. Import the produce function from Immer in the file where you want to use it:

import produce from 'immer';

You can now use the produce function to create a draft and apply mutations in an immutable way:

const state = {
  name: 'John',
  age: 25,
};

const nextState = produce(state, draft => {
  draft.age += 1;
});

console.log(nextState); // { name: 'John', age: 26 }

Step 4: Test and Build

After integrating Immer into your Webpack project, you should run your tests and build processes to ensure everything works as expected. Check if your application behaves correctly with the updated state management using Immer.

Conclusion

By integrating Immer into your Webpack project, you can simplify your state management and make your code more readable and maintainable. Following the steps outlined in this guide will allow you to seamlessly leverage the power of Immer in your Webpack workflow.

#webdev #state-management