babel-plugin-dev

Simple Babel plugin that replaces the global `__DEV__` identifier with `process.env.NODE_ENV !== 'production'`, allowing developers to conditionally include debug-only code without runtime overhead. Version 1.0.0 is stable and final; no new releases expected. It is lightweight with zero dependencies, works with Babel 6 and 7, and is used in production by many React-based libraries. Unlike alternatives like babel-plugin-transform-inline-environment-variables or manual if-blocks, this plugin provides a single-purpose, semantic `__DEV__` syntax with no configuration required.