Why do programmers add comments to their code?
In computer programming, a comment is a programmer-readable explanation or annotation in the source code of a computer program. They are added with the purpose of making the source code easier for humans to understand, and are generally ignored by compilers and interpreters.
Should you leave commented code?
A: A very valid question. Removing commented code not only makes it harder to find later, but it also makes it so people in the future don’t know it existed before. For finding the code, there are tools and git commands to help you look at the history of a file.
How do you put comments in codes?
PDT allows you to quickly and easily comment and uncomment code by selecting a line or a block of text and tagging it as a comment. Comments can be added to single lines of code (Ctrl + /) or blocks of code (Ctrl + Shift + /).
Why are comments used in a program?
Comments are text notes added to the program to provide explanatory information about the source code. They are used in a programming language to document the program and remind programmers of what tricky things they just did with the code and also helps the later generation for understanding and maintenance of code.
Which two are the correct syntax for adding comments?
Breakpoints will stop program execution at the last breakpoint. Which two are the correct syntax for adding comments? Start with two slashes (//). End with two slashes (//).
Is the commented out code in source control?
The commented-out code is there to serve as a direct reminder that this is incomplete. Sure, the old version is in source control and you could just use a FIXME comment as a flag that something more is needed. However, sometimes (if not often) code is the better comment.
When to check in code that is commented out?
“Never” is rarely a good word to use in guidelines. Your colleague has a great example of when it might be appropriate to check in code that is commented out: When it is incomplete and might break the application if checked in while active. For the most part, commenting out dead code is unnecessary in a well-managed change-controlled system.
What’s the best way to maintain a codebase?
This basic rule is the most simple secret for maintaining an existing codebase. One of the most important factors influencing the maintainability of code is its readability. The more readable the code is, the easier it is to maintain that code. The more cryptic and difficult to understand code is, the more difficult it is to maintain.
Do you spend more time maintaining code than writing new code?
The truth of the matter is that you’ll spend much more time over the course of your software development career maintaining code than you will writing new code. That’s how life is. Just one of those things. This fact doesn’t mean, though, that you’ll only be working on maintaining old VB6 applications written decades ago.