What is the purpose of using "comments" in code?

Using comments in code serves primarily to explain complex parts of the code. Comments provide clarity and context to the logic, helping others (or even the original programmer at a later time) understand the purpose, functionality, and reasoning behind specific code segments. They can describe how a particular algorithm works, outline the steps taken to achieve a solution, or highlight any important nuances that need attention.

While comments do not affect the code's execution speed or define variable types and functions, their inclusion enriches the coding experience by making the code more maintainable and easier to debug. Additionally, comments can offer insight into the structure of the code, but their main goal is to shed light on complexity, ensuring the code is accessible and understandable to a broader audience.