Clean Code in JavaScript

Exploring and understanding

Understanding a code base fully is not strictly necessary to make use of it nor to make changes to it, but if we don't have a sufficient understanding of the complexity of all its interrelated parts, then we can fall into a trap. The trap occurs when we, believing we have a good understanding, start making changes. Without understanding the full effects of our actions, we can end up wasting time, implementing things poorly, and producing accidental bugs. Therefore, it is vital that we become properly informed. To do this, we must first gauge how complete or incomplete our view is of the complexity of the system or code base.

Often the things we cannot see are completely unknown to us, and we are therefore unaware ...