Recently, I’ve been thinking about few common anti-patterns I tend to see in professional JavaScript projects. Today, I wanted to talk about one of them: no docs. A lot of more seasoned developers have this obsessed with “self-documenting code.” And its true that if you write functions that do just one thing and follow logical naming conventions, what a piece of code does can often be pretty apparent. Looking at the addItemToCart() function below, I can pretty quickly determine that I pass in the ID of the item to add, and it updates the quantity of that item in the cart object.