webpack-bundle-analyzer react - Javascript

Introduction

Webpack-bundle-analyzer is a plugin that can be used to analyze and visualize the size and content of your webpack bundle. It helps you understand and optimize your bundle size to make your application more efficient. In this article, we will focus on using webpack-bundle-analyzer to analyze a React-JavaScript application.

Getting Started

To use webpack-bundle-analyzer, you need to first install it as a development dependency in your application:

npm install --save-dev webpack-bundle-analyzer

Then, you need to add it to your webpack configuration file:

const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
  // ...other webpack configurations
  plugins: [
    new BundleAnalyzerPlugin()
  ]
}

Analyzing your React-JavaScript application

Once you have added the plugin to your webpack configuration file, you can then analyze your React-JavaScript application by running your webpack build. This will generate a report that you can open in your browser to see the size and content of your bundle.

webpack --profile --json > stats.json
npx webpack-bundle-analyzer stats.json

The report will show you a tree map of your application, with each rectangle representing a file or a module. The size of each rectangle represents the size of the file or module.

You can click on a rectangle to zoom in and see the content of the file or module, and you can also search for specific files or modules using the search bar.

Conclusion

Webpack-bundle-analyzer is a great tool for analyzing and optimizing the size and content of your webpack bundle. By using it to analyze your React-JavaScript application, you can better understand the size and content of your bundle and optimize it to make your application more efficient.

Reference

• Webpack-bundle-analyzer
• Webpack-bundle-analyzer - GitHub