Naming convention for Boolean properties

Question

I'm struggeling with the prefixes of my Booleans between Is- and Has-.
Because sometimes Has- make more sens than Is-

Sampe:

bool IsPrintable
bool IsChecked

bool HasDocument
bool HasPermission

so whats your opinion about that?

go through this: http://stackoverflow.com/questions/3874350/naming-conventions-for-java-methods-that-return-booleanno-question-mark it will definitely help you out. — Roshan, Jun 13 '13 at 07:30

score 5 · Accepted Answer · answered Jun 13 '13 at 07:26

5

Use both. It makes your code much more readable:

if (IsPrintable) Print()

if (HasDocument) Documents[0].Name = 'New Doc'

Etc.

answered Jun 13 '13 at 07:26

Ryan

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score -2 · Answer 2 · answered Jun 13 '13 at 07:30

-2

You could always use _p

Document_p
Printable_p

This derives from an old Lisp convention. "P" stands for predicate, making it basically a form of Hungarian notation. This makes _p always precisely true, versus always using Is or Has, which would be misleading at best.

But seriously: Follow @Ryan's suggestion. Use both.

answered Jun 13 '13 at 07:30

jpaugh

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i thought Hungarian are again the modern standards of naming conventions like `strText` to say it is a `string` value – WiiMaxx Jun 13 '13 at 07:39
Yes. And predicate is a fancy way of saying bool. – jpaugh Jun 13 '13 at 07:41

Naming convention for Boolean properties

2 Answers2