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No submodule mapping found in .gitmodule for a path that's not a submodule

... mentions: do you get the same error when running 'git submodule init' from a fresh clone? If so, you have something wrong. If you have no submodules, delete .gitmodules, and any references to submodules in .git/config, and ensure the Pikimal dir does not have a .git dir in it. If t...
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Django filter versus get for single object?

... You can install a module called django-annoying and then do this: from annoying.functions import get_object_or_None obj = get_object_or_None(MyModel, id=1) if not obj: #omg the object was not found do some error stuff ...
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C# pattern to prevent an event handler hooked twice [duplicate]

... Calls to Invoke() will have to be switched from the public event to the private delegate, e.g. Foo?.Invoke() would now become foo?.Invoke(). Otherwise you get an error. – toddmo Oct 19 '17 at 16:19 ...
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Get the client IP address using PHP [duplicate]

...he below both functions are equivalent with the difference only in how and from where the values are retrieved. getenv() is used to get the value of an environment variable in PHP. // Function to get the client IP address function get_client_ip() { $ipaddress = ''; if (getenv('HTTP_CLIENT_...
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iPhone hide Navigation Bar only on first page

...lDisappear(animated) } This will cause the navigation bar to animate in from the left (together with the next view) when you push the next UIViewController on the stack, and animate away to the left (together with the old view), when you press the back button on the UINavigationBar. Please note ...
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How do I know which version of Javascript I'm using?

... alert(jsver); </script> My Chrome reports 1.7 Blatantly stolen from: http://javascript.about.com/library/bljver.htm share | improve this answer | follow ...
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Will console.log reduce JavaScript execution performance?

...ogs. The answers to this question may give you hints on how to remove them from production. share | improve this answer | follow | ...
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CSS fixed width in a span

...block; width: 50px; } </style> This works on all browsers apart from FF2 and below. Firefox 2 and lower don't support this value. You can use -moz-inline-box, but be aware that it's not the same as inline-block, and it may not work as you expect in some situations. Quote tak...
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LaTeX source code listing like in professional books

...in the formatting instructions to produce something like the sample below (from Manning's sample chapter for Spring in Action ): ...
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How to list only the file names that changed between two commits?

...s in the repo. I want to see a list of files changed between two commits - from SHA1 to SHA2. 13 Answers ...