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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
Git has a well-known, or at least sort-of-well-known, empty tree whose SHA1 is:
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Turning a string into a Uri in Android
I have a string, 'songchoice' . I want it to become a 'Uri' so I can use with MediaPlayer.create(context, Uri)
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MongoDB: Find a document by non-existence of a field?
Is there a way to specify a condition of "where document doesn't contain field" ?
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Visual Studio Wcf Test Client - entering an Int array
I've found the Visual Studio WCF test client quite useful when it comes to a quick test of my WCF service.
This is the test client found in this location relative to your Visual Studio install directory:
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How to git log from all branches for the author at once?
I need to get the report of all commits that the author did. So far, I have the script that wraps the following command:
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Handler is abstract ,cannot be instantiated
I am trying to use a Handler in my app. But when i instantiate it like this:
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What does the regular expression /_/g mean?
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Using ping in c#
When I Ping a remote system with windows it says there is no reply, but when I ping with c# it says success. Windows is correct, the device is not connected. Why is my code able to successfully ping when Windows is not?
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How to print an exception in Python?
How can I print the error/exception in my except: block?
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How to select an element inside “this” in jQuery?
I know can I select an element this way:
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