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On design patterns: When should I use the singleton?
...ptable" reasons to use a Singleton.
One reason that tends to come up over and over again on the internets is that of a "logging" class (which you mentioned). In this case, a Singleton can be used instead of a single instance of a class because a logging class usually needs to be used over and over ...
How to wait for several Futures?
Suppose I have several futures and need to wait until either any of them fails or all of them succeed.
8 Answers
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How do you upload images to a gist?
...ag an image into the comment field below. This will upload your image file and insert the markdown code with the url for your uploaded image.
Copy this markdown and paste it into the file you want to display it.
Live example
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Django filter versus get for single object?
...lly implemented in Django, so there should be no "performance" difference (and the fact that you're thinking about it indicates you're violating one of the cardinal rules of programming, namely trying to optimize code before it's even been written and profiled -- until you have the code and can run ...
How useful/important is REST HATEOAS ( maturity level 3)?
...me senior team members believe that a REST API has to be HATEOAS compliant and implement all Richardson's maturity levels ( http://martinfowler.com/articles/richardsonMaturityModel.html )!
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How do I check if a string is valid JSON in Python?
... can do something else with it. So far, I've only gotten the error message and type.
– Joey Blake
Apr 1 '11 at 12:36
2
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Unable to load DLL 'SQLite.Interop.dll'
...figured in NuGet with only the Sqlite core package.). The project compiles and copies all the Sqlite dll-s except the 'SQLite.Interop.dll' (both x86 and x64 folder).
The solution was very simple: just add the Sqlite.Core package as a dependency (with NuGet) to the project you are building/running a...
Converting string into datetime
...e.strptime is the main routine for parsing strings into datetimes. It can handle all sorts of formats, with the format determined by a format string you give it:
from datetime import datetime
datetime_object = datetime.strptime('Jun 1 2005 1:33PM', '%b %d %Y %I:%M%p')
The resulting datetime obj...
How can I change Eclipse theme?
... that go to
Window -> Preferences -> General -> Appearance
And change the theme from GTK (or what ever it is currently) to Dark Juno (or Dark).
That will change the UI to a nice dark theme but to get the complete look and feel you can get the Eclipse Color Theme plugin from eclipsec...
Proper practice for subclassing UIView?
I'm working on some custom UIView-based input controls, and I'm trying to ascertain proper practice for setting up the view. When working with a UIViewController, it's fairly simple to use the loadView and related viewWill , viewDid methods, but when subclassing a UIView, the closest methosds I...