Hungarian notation was, and is, a good idea.
Unfortunately prefixing the variable with the type has today become suffixing:
sCustomerNumber -> customerNumber
sPassword -> passwordString
nMax -> maxValue
What is the reason for this? Is it harder to read nCustomer than customerNumber? I don't think so. Instead more space/characters are used for communicating the same information.
Think of the ever present"customer number". Written as customerNumber at first look it looks like a number, a series of figures. Now we know that a customer number has dashes and letters in them so it is really a string, like customerNumberString. Written with hungarian notation it is sCustomerNumber and clearly a string.
Now I have come to use non camelCasing like everyone else but only for strongly typed languages like C# which can by itself differ between strings and integers. For loosely typed languages like Javascript or PHP i still use hungarian notation.
My rules for hungarian notation in Javascript is like:
sXXX for strings
nXXS for integers (bytes, long integers, whatever)
fXXX for floats (doubles, decimal, whatever)
oXXX for many objects (oUser, oBoat, whatever)
myclassXXX for other object (userProtagonist, accountMain, accMain, whatever)
rsXXX for record sets
bXXX for booleans
anXXX for arrays of integers
asXXX for arrays of strings
cXXX for constants and characters - I am not totally happy with this
There has been no reason to make it more complex than that.
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Go to mr J for the laughs and the truth.
Go to ms B for naming this blog.
About Me
- LosManos
- Göteborg, Sweden
- Developing solutions mainly on the Windows platform during my working hours. Hoping to make the world a better place the rest.
My other projects
LIUSClasses
Handy dotnet functions, unit tested and proven in production
EarClip
Keep you bookmarks online - 0.6
Kopain
Simple editor with a tree navigator - 0.1
Selfelected ideas
Another blog which just contains ideas.
Handy dotnet functions, unit tested and proven in production
EarClip
Keep you bookmarks online - 0.6
Kopain
Simple editor with a tree navigator - 0.1
Selfelected ideas
Another blog which just contains ideas.
Heroes, in alphabetical order
Tools
Agent Ransack
A good file searcher that is both simple to use and have regular expression for the more advanced user. It of course searches the folders that Micorosft's built-in avoids. Cost free.
Autohotkey
Global hotkeys. A simple scriptable solution to utilise the windows button. Start an application or simulate the keyboard with a simple keystroke. Open source.
DPack
A must-have tool for VSNet2003/5/8. The functionality I use the most is alt-M to list and easily search through methods in the active file and alt-U to open files without having to search for them in the project explorer. Free.
Keepass
This is a password storer. It is open source to make sure the encryption is valid. I use the older 1.x version since it has the same database as the Windows Mobile client. This makes it possible for me to always have my passwords at hand.
Keynote
A simple hierarichal text editor. Bring it up with a keystroke, jot down your notes, let it vanish. Open source.
c# code format
A gratis solution for CSSing source code for use in blogs like this.
Notepad2
An open source text editor. It is not the best but it replaces Notepad in a correct way and hence gets rid of the bugs in Notepad.
Pastebin
A free site for discussing code instead of pasting it back and forth in chat or email. Easier to try than to explain.
PDFCreator
I you want to create PDF documents but don't want to spend money on Adobe's bloated solution do use this open source PDF printer. It installs a printer and when printed to creates a PDF document on your hard disk. Works for any application that can print.
Spamgourmet
A free site for one time email addresses.
Winmerge
A nice diff tool. Compares files and directories. Much better than Windiff/Sourcesafe. Open source.
A good file searcher that is both simple to use and have regular expression for the more advanced user. It of course searches the folders that Micorosft's built-in avoids. Cost free.
Autohotkey
Global hotkeys. A simple scriptable solution to utilise the windows button. Start an application or simulate the keyboard with a simple keystroke. Open source.
DPack
A must-have tool for VSNet2003/5/8. The functionality I use the most is alt-M to list and easily search through methods in the active file and alt-U to open files without having to search for them in the project explorer. Free.
Keepass
This is a password storer. It is open source to make sure the encryption is valid. I use the older 1.x version since it has the same database as the Windows Mobile client. This makes it possible for me to always have my passwords at hand.
Keynote
A simple hierarichal text editor. Bring it up with a keystroke, jot down your notes, let it vanish. Open source.
c# code format
A gratis solution for CSSing source code for use in blogs like this.
Notepad2
An open source text editor. It is not the best but it replaces Notepad in a correct way and hence gets rid of the bugs in Notepad.
Pastebin
A free site for discussing code instead of pasting it back and forth in chat or email. Easier to try than to explain.
PDFCreator
I you want to create PDF documents but don't want to spend money on Adobe's bloated solution do use this open source PDF printer. It installs a printer and when printed to creates a PDF document on your hard disk. Works for any application that can print.
Spamgourmet
A free site for one time email addresses.
Winmerge
A nice diff tool. Compares files and directories. Much better than Windiff/Sourcesafe. Open source.
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2 comments:
I am afraid I have to disagree with you and it's all your fault since you lent me Fowlers book on refactoring. Hungarian notation where you prefix variables with a type denominator defeats refactoring. Or at least adds another hurdle, changing the datatype means you have to rename the variable as well.
I'm willing to add an m or underscore to private member variables in order to distinguish them from local variables as well as public variables.
Public: Value
Private: mValue (or _value)
Local: value
The type denominator is in hungrarian notation in the front. Easy to recognize.
In the prefered notation of dotnet the same type denominator is placed in the end instead. Easy to mistake for a part of the word.
As long as one marks the type, prefix or suffix, the refactoring problem remains.
One would have a slight chance though with hungarian notation since it is easier to recognize. The automatic refactoring could give a warning that it looks-like-the-variable-name-should-be-altered.
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