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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
... ok, thats a good idea, but for the pre-existing value it will return an error but NOT the value itself, right?
– Discipol
May 3 '13 at 14:41
3
...
How to open every file in a folder?
...or Windows users the third solution did not work, Windows gives Permission Error: [Errno 13] Permission denied:
– Roshna Omer
Jan 10 '19 at 8:36
...
How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
...ns still in Marshmallow (6.0.1). That said, I have only ever received this error once. So it doesn't seem to be a gigantic problem. Thank you for your thorough explanation.
– Knossos
Jan 13 '16 at 6:09
...
Event system in Python
...el is basically a bag-of-handlers with more features related to threading, error handling, ...
python-dispatch requires the even source classes to derive from pydispatch.Dispatcher.
buslane is class-based, supports single- or multiple handlers and facilitates extensive type hints.
Pithikos' Observer...
git still shows files as modified after adding to .gitignore
...far too long.
I tried git rm -r --cached . but would always get path-spec ERRORS, with different variations of the path-spec as well as with the -f and -r flags.
git status would still show the filenames, so I tried using some of those verbatim with git rm -cached, but no luck.
Stashing and unstas...
Google maps API V3 - multiple markers on exact same spot
... but I wanted to let you know that the map on ejw.de is broken. I get a JS error.
– Alex
Nov 10 '16 at 17:07
I checked...
Resize image proportionally with MaxHeight and MaxWidth constraints
...o(FileInfo sourceImage, int desiredWidth, int desiredHeight)
{
//throw error if bouning box is to small
if (desiredWidth < 4 || desiredHeight < 4)
throw new InvalidOperationException("Bounding Box of Resize Photo must be larger than 4X4 pixels.");
var original =...
What's the difference between the various methods to get a Context?
...ackageName;
} catch (NameNotFoundException e) {
// Log error here.
}
return packageName;
}
}
Bind an application-wide class:
Intent mIntent = new Intent(this, MyPersistent.class);
MyServiceConnection mServiceConnection = new MyServiceConnection();
if (mServ...
How to verify that a specific method was not called using Mockito?
...he test writer explicitly remembering to list out these checks: that's too error prone in my book.
– David Lavender
May 31 '16 at 15:55
2
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Function passed as template argument
...d;
int c = do_op<func_ptr>(4,5);
will fail to compile. GCC says: "error: 'func_ptr' cannot appear in a constant-expression. In other words, I can't fully expand do_op because you haven't given me enough info at compiler time to know what our op is.
So if the second example is really fully...