React Performance Optimization: Code Splitting

The main purpose of Webpack's SplitChunksPlugin is to automatically identify and extract common dependencies into shared chunks. Without this plugin, the same dependency might be included in multiple chunks if it's used by different parts of your application. SplitChunksPlugin analyzes your dependency graph and creates separate 'vendor' or 'commons' chunks that contain shared code, ensuring that each piece of code only needs to be downloaded once, even when used by multiple code-split sections of your application.