If you are using Angular2 --> read about injectables (it is something like services in Angular 1). 
They are an easy way to provide functions and properties to all components
↧
Firebase variable that can be accessed globally
↧
![Vladimir Aćimović – Draeseke: Piano Works (2026) [FLAC 24bit/96kHz]](http://imghd.xyz/images/2026/06/27/jz9s92jaavhy5_600.jpg)
![Mumford & Sons – Blind Leading the Blind – Single [iTunes Plus M4A]](http://is1-ssl.mzstatic.com/image/thumb/Music124/v4/49/c3/83/49c38304-45c6-20d0-c6df-3b36ea8bd92a/19UMGIM89194.rgb.jpg/316x316bb.webp)
