Each company wants to build the next unicorn. The next Facebook, the next Twitter, the next Quora. But this is rarely what they accomplish. I’ve seen it time and time again.

This is one of those things they don’t teach you in school. These days, it’s not only time-consuming to build everything from scratch, but also not wise. These days, it’s all about rapid prototyping, continuous integration and “moving fast and breaking things”. There’s no point in implementing a time and date Javascript library, as moment.js already does that job wonderfully.