After recently undergoing numerous job interviews and getting a glimpse at what is expected of new candidates, I felt a bit of fear for anyone starting out in the field of computer science and tech. There is just too much out there to learn.
The bulk of the web runs on Javascript but as the web becomes more integral into the way we do business today, dynamically languages are slowly tacking on those features from languages like Java we once hated.
Sometimes confidence comes from having experienced a thing many times. In the world of coding, there are times when you just needed to add a few lines of code to modify a functionality. The lesson from this experience is no matter how confident you feel your code is, always write tests.