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When to use static classes in C# [duplicate]
...lity either before or after the old method, we can create a new class and call the old one inside of it - but that's just gross.
Interface woes
Static methods cannot be defined through interfaces for logic reasons. And since we can't override static methods, static classes are useless when we need...
ActiveRecord: size vs count
...l valid.
You'll adapt the function you use depending on your needs.
Basically:
if you already load all entries, say User.all, then you should use length to avoid another db query
if you haven't anything loaded, use count to make a count query on your db
if you don't want to bother with these con...
Get controller and action name from within controller?
...outeValues["id"];
else if (HttpContext.Current.Request.QueryString.AllKeys.Contains("id"))
return HttpContext.Current.Request.QueryString["id"];
return string.Empty;
}
public static string Controller(this HtmlHelper htmlHelper)
{
var routeValues = Ht...
Modulo operation with negative numbers
...
C99 requires that when a/b is representable:
(a/b) * b + a%b shall equal a
This makes sense, logically. Right?
Let's see what this leads to:
Example A. 5/(-3) is -1
=> (-1) * (-3) + 5%(-3) = 5
This can only happen if 5%(-3) is 2.
Example B. (-5)/3 is -1
=> (-1) * 3 + (-5...
Color text in terminal applications in UNIX [duplicate]
...[0m", and then printf(KMAG "magenta RESET \n");
– mf_
Jan 7 '14 at 19:41
2
Better yet, puts( KMA...
Cell spacing in UICollectionView
...
This is a much better answer. Take a look at the callbacks you can adjust in the UICollectionViewDelegateFlowLayout and you can see how this can be tweaked.
– cynistersix
Dec 17 '14 at 2:52
...
Official reasons for “Software caused connection abort: socket write error”
...
@rustyx All three sources cited here state that it is produced by ACK failures. If you have a source for your own claim please cite it.
– Marquis of Lorne
May 27 '15 at 5:52
...
Callback functions in Java
... answered Nov 6 '14 at 10:02
Juh_Juh_
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Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?
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For the .gitignore file, there is a private version called exclude, located in .git/info/, which is not version handled. Is there a corresponding file for the .gitmodules file, that will let you suppress changes in the submodule only in your instance of the parent repository, w...
rails + MySQL on OSX: Library not loaded: libmysqlclient.18.dylib
....18.dylib /usr/lib/libmysqlclient.18.dylib
There are many blogs with install_name_tool, which won't work for me because I'm on OSX Lion:
sudo install_name_tool -change libmysqlclient.18.dylib /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/local/bin/indexer
sudo install_name_tool -change libmys...