How do you comment if else statement?

How do you comment if else statement?

Using // comment for whole if-else statement description, and /* */ comment for inner description. I use /* */ comment for not being confused with inner-comment of if-else statement.

Do conditional blocks always need to have ELSE statements?

No. If you don’t need to run any code on the else side, you don’t need an else clause.

How do you comment if statements in python?

Comment Syntax Comments in Python begin with a hash mark ( # ) and whitespace character and continue to the end of the line. Because comments do not execute, when you run a program you will not see any indication of the comment there. Comments are in the source code for humans to read, not for computers to execute.

Do comments go above or below code?

In the US, at least, the de facto standard is commenting either before the code or on the same line following the code. Writing your comments after the related code invites a drug test, a psychiatric evalutation, and/or a date with a pair of pliers and a blow torch.

What should I comment on an Instagram post?

Short good comments for Instagram pictures

1. Never seen a selfie of yours that I don’t like.
2. You are the coolest.
3. This outfit deserves applause (Clap emojis).
4. Blessing my Insta feed once again.
5. The hottest pal in the town.
6. Friends forever.
7. They say love is beautiful, but I say friendship is better.

Can you end with else if?

So I hope not tl;dr the first questions answer is no, a else can follow after an if but it does not need to, the other way is completely prohibited (else without if), makes sense as this would mean do it in all cases, where you would not need a condition, so it is expected to be an unwanted error.

How do you write a good comment in Python?

A comment in Python starts with the hash character, # , and extends to the end of the physical line. A hash character within a string value is not seen as a comment, though. To be precise, a comment can be written in three ways – entirely on its own line, next to a statement of code, and as a multi-line comment block.

How do I turn code into a comment in Python?

In Eclipse + PyDev, Python block commenting is similar to Eclipse Java block commenting; select the lines you want to comment and use Ctrl + / to comment. To uncomment a commented block, do the same thing. The only mechanism to comment out Python code (understood as code ignored by the interpreter) is the #.

Why is there an ” else ” in a comment?

Having an “else” with just an empty line of a code comment can usually mean the developer thought-through the condition and has a better idea of what execution path is actually taken at a given time. All recent compilers will remove the “else” and the comment, so you are not slowing software execution.

How should one comment an IF-ELSE structure?

Comments are very much a personal thing, and (as can be seen by some of the earlier answers) generate as much debate as the code. In simple cases, comments detract from the code. But assuming a more complex condition, I prefer:

When to put a comment before an IF statement?

If later refactoring removes the “BecauseOfY” part, then it still makes better sense to put a comment before the if statement, documenting the overall logic. Of course, you then need to reduce the amount of code within each branch to the point where you can read the entire if statement at once.

When do comments detract from the code?

In simple cases, comments detract from the code. But assuming a more complex condition, I prefer: In any case, the comments must not just repeat the code. I wouldn’t comment in those particular cases at all–the comments don’t add any value over your already clear code.