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django models selecting single field
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How to make CSS width to fill parent?
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...
PostgreSQL: Drop PostgreSQL database through command line [closed]
I'm trying to drop my database and create a new one through the command line.
4 Answers
...
How to shuffle a std::vector?
...ner.begin(), container.end(), std::random_device());
This will produce a new shuffle each time the program is run. I also like this approach due to the simplicity of the code.
This works because all we need for std::shuffle is a UniformRandomBitGenerator, whose requirements std::random_device mee...
Reading ePub format
...ticular need "to unzip it somewhere" if by that you mean creating separate new files that are the unpacked contents of the ZIP archive. ZIP is a pretty simple format, and it should be fairly easy to create libraries that give you input streams for the various files in the archive that read directly ...
Calculating distance between two points, using latitude longitude?
...g[] args) {
// TODO Auto-generated method stub
CalDistance obj=new CalDistance();
/*obj.distance(38.898556, -77.037852, 38.897147, -77.043934);*/
System.out.println(obj.distance(38.898556, -77.037852, 38.897147, -77.043934, "M") + " Miles\n");
System.out.println(obj.d...
RSS Feeds in ASP.NET MVC
...ntType = "application/rss+xml";
Rss20FeedFormatter rssFormatter = new Rss20FeedFormatter(Feed);
using (XmlWriter writer = XmlWriter.Create(context.HttpContext.Response.Output))
{
rssFormatter.WriteTo(writer);
}
}
}
Now in your controller action you ...
Position an element relative to its container
... 30px;
right : 30px;
}
position : relative
To place an element at a new location relative to its original position.
#myelem {
position : relative;
left : 30px;
top : 30px;
}
The above CSS will move the #myelem element 30px to the left and 30px from the top of its actual locatio...
What is the difference between single-quoted and double-quoted strings in PHP?
... with <<<. After this operator, an identifier is provided, then a newline. The string itself follows, and then the same identifier again to close the quotation. You don't need to escape quotes in this syntax.
Nowdoc (since PHP 5.3.0) string syntax works essentially like single quoted strin...
Detect whether there is an Internet connection available on Android [duplicate]
...l.Log;
public class AppStatus {
private static AppStatus instance = new AppStatus();
static Context context;
ConnectivityManager connectivityManager;
NetworkInfo wifiInfo, mobileInfo;
boolean connected = false;
public static AppStatus getInstance(Context ctx) {
co...