Some apps really do need a backend. With Cloud Functions your code automatically runs in response to events and scales up and down to meet demand. Unfortunately, Cloud Functions can't write your code for you (yet). And writing that code is error prone. In this video with Thomas Bouldin and Lauren Long, learn how to improve your development process and prevent bugs before your code gets into production by writing functions in TypeScript, using our new tools for unit testing, and experimenting with your functions locally using the emulator. Check out the rest of the Firebase Dev Summit videos here: https://goo.gl/bczYSW Subscribe to the Firebase Channel and never miss Firebase updates: https://goo.gl/9giPHG