babel-plugin-angular2-annotations

An experimental Babel transformer plugin for Angular 2 decorators and type annotations. Version 5.1.0 (last released in 2016) is the latest stable version, but the project is effectively abandoned with no updates since. It requires babel-plugin-transform-decorators-legacy for decorator support and transforms Flow-style type annotations into Angular's design:paramtypes metadata for dependency injection. Unlike the official Angular compiler, this plugin allowed using Angular 2 with Babel/Flow instead of TypeScript. However, it only supports Angular 2.x and has known issues with newer Angular versions and strict mode.