Projects sharing features with Babel Connect

babel-loader is a webpack plugin that integrates the Babel compiler into a module bundling workflow. It serves as a bridge that allows modern JavaScript to be transpiled into backward-compatible versions during the build process. The project optimizes bundle sizes by replacing duplicated helper functions with references to a shared external runtime. To accelerate subsequent compilation cycles, it utilizes a filesystem-based cache to store processed files and avoid redundant transpilation. The loader supports environment-specific configuration mapping and target configurations to apply differ