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The Weird and The Wonderful

   

The Weird and The Wonderful forum is a place to post Coding Horrors, Worst Practices, and the occasional flash of brilliance.

We all come across code that simply boggles the mind. Lazy kludges, embarrassing mistakes, horrid workarounds and developers just not quite getting it. And then somedays we come across - or write - the truly sublime.

Post your Best, your worst, and your most interesting. But please - no programming questions . This forum is purely for amusement and discussions on code snippets. All actual programming questions will be removed.

 
GeneralRe: ConvertToReadableNumber Pin
Sasha Laurel13-Aug-12 5:14
Sasha Laurel13-Aug-12 5:14 
GeneralSecurity - You're doing it wrong! PinPopular
Andrei Straut8-Aug-12 3:56
Andrei Straut8-Aug-12 3:56 
GeneralRe: Security - You're doing it wrong! Pin
Brisingr Aerowing8-Aug-12 15:15
professionalBrisingr Aerowing8-Aug-12 15:15 
JokeRe: Security - You're doing it wrong! Pin
Bernhard Hiller8-Aug-12 21:42
Bernhard Hiller8-Aug-12 21:42 
JokeRe: Security - You're doing it wrong! Pin
Andrei Straut8-Aug-12 23:05
Andrei Straut8-Aug-12 23:05 
GeneralRe: Security - You're doing it wrong! Pin
Bernhard Hiller9-Aug-12 0:49
Bernhard Hiller9-Aug-12 0:49 
GeneralRe: Security - You're doing it wrong! Pin
Andrei Straut9-Aug-12 1:15
Andrei Straut9-Aug-12 1:15 
GeneralRe: Security - You're doing it wrong! Pin
ekolis30-Aug-12 13:09
ekolis30-Aug-12 13:09 
Andrei Straut wrote:
On the other hand, I'm having fun now with LINQ parsing the list of products from suppliers (didn't get to play with LINQ so far, but I'm quite liking it. Heard it's pretty slow compared to the other alternatives, but in my case speed is not that much of an issue)


One thing that can make LINQ slow is not caching query results appropriately. (Not saying it's not slow to begin with; I really don't know!) For instance:

C#
// this method is very slow, it uses the database and network and maybe the TARDIS too
public IEnumerable<FancyBusinessObject> GetLotsOfData() {...}

// this method is *extremely* slow since it calls the database and network over and over again
public void CrashYourServer()
{
    var data = GetLotsOfData(); // this just saves a QUERY! not the data!
    // so far so good...
    foreach (var item in data)
    {
        item.DoFancyBusinessOperation();
    }
    // wait, iterating over the enumerable again? uh-oh!
    foreach (var item in data) // going to call the database and network and TARDIS again!
    {
        item.DoOtherFancyBusinessOperation();
        foreach (var otherItem in data) // what, now we need an O(N^2) operation? NOOOOOO!
        {
            ComparisonResults.Add(item.CompareTo(otherItem));
        }
    }
}

// this method is more efficient!
public void PlayNice()
{
    var data = GetLotsOfData().ToArray(); // this actually loads and caches the data, yay!
    foreach (var item in data)
    {
        item.DoFancyBusinessOperation();
    }
    foreach (var item in data)
    {
        item.DoOtherFancyBusinessOperation();
        foreach (var otherItem in data)
        {
            ComparisonResults.Add(item.CompareTo(otherItem));
        }
    }
}

GeneralRe: Security - You're doing it wrong! Pin
Brisingr Aerowing10-Aug-12 15:01
professionalBrisingr Aerowing10-Aug-12 15:01 
GeneralMicrosoft.Sharepoint.dll Pin
leppie7-Aug-12 3:22
leppie7-Aug-12 3:22 
GeneralRe: Microsoft.Sharepoint.dll Pin
PIEBALDconsult7-Aug-12 3:44
mvePIEBALDconsult7-Aug-12 3:44 
GeneralRe: Microsoft.Sharepoint.dll Pin
Kevin Drzycimski7-Aug-12 19:03
Kevin Drzycimski7-Aug-12 19:03 
GeneralRe: Microsoft.Sharepoint.dll Pin
leppie7-Aug-12 19:46
leppie7-Aug-12 19:46 
GeneralRe: Microsoft.Sharepoint.dll Pin
Eddy Vluggen9-Aug-12 1:09
professionalEddy Vluggen9-Aug-12 1:09 
GeneralRe: Microsoft.Sharepoint.dll Pin
leppie9-Aug-12 3:29
leppie9-Aug-12 3:29 
GeneralThe worst way to name a variable PinPopular
DaintyB3-Aug-12 21:03
DaintyB3-Aug-12 21:03 
GeneralRe: The worst way to name a variable Pin
PIEBALDconsult4-Aug-12 8:29
mvePIEBALDconsult4-Aug-12 8:29 
GeneralRe: The worst way to name a variable Pin
AspDotNetDev4-Aug-12 21:03
protectorAspDotNetDev4-Aug-12 21:03 
GeneralRe: The worst way to name a variable Pin
Andrei Straut6-Aug-12 2:37
Andrei Straut6-Aug-12 2:37 
GeneralRe: The worst way to name a variable Pin
DaintyB4-Aug-12 22:34
DaintyB4-Aug-12 22:34 
GeneralRe: The worst way to name a variable Pin
Andrei Straut6-Aug-12 2:41
Andrei Straut6-Aug-12 2:41 
GeneralRe: The worst way to name a variable Pin
BillW337-Aug-12 8:39
professionalBillW337-Aug-12 8:39 
GeneralRe: The worst way to name a variable Pin
Brisingr Aerowing15-Aug-12 15:14
professionalBrisingr Aerowing15-Aug-12 15:14 
GeneralWhat's the f()?! PinPopular
David MacDermot2-Aug-12 12:57
David MacDermot2-Aug-12 12:57 
GeneralRe: What's the f()?! Pin
OriginalGriff2-Aug-12 21:23
mveOriginalGriff2-Aug-12 21:23 

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