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How to avoid isset() and empty()

...is undefined" and "undefined offset" messages when running on the E_NOTICE error level, because the existence of variables is not explicitly checked using isset() and consorts. ...
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Dynamically Changing log4j log level

...e> </Appenders> <Loggers> <Root level="error"> <AppenderRef ref="MY_TRY_IT"/> </Root> </Loggers> </Configuration> There are extra steps to make this work if you are deploying to a tomcat instance, inside an IDE...
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What is monkey patching?

...imulate a data retrieval call to an outside data source that results in an error, because we want to ensure correct behavior in such a case. We can monkey patch the data structure to ensure this behavior. (So using a similar method name as suggested by Daniel Roseman:) import datasource def get_d...
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How do I simulate a hover with a touch in touch enabled browsers?

... answered May 23 '10 at 9:05 Rich BradshawRich Bradshaw 65.7k4343 gold badges167167 silver badges234234 bronze badges ...
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Ajax success event not working

...mat, so when jQuery tries to parse it as such, it fails. You can catch the error with error: callback function. You don't seem to need JSON in that function anyways, so you can also take out the dataType: 'json' row. share ...
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Git/GitHub can't push to master

...otocol, which is indicated by your use of the URL beginning git://. As the error message says, if you want to push, you should use either the SSH URL git@github.com:my_user_name/my_repo.git or the "smart HTTP" protocol by using the https:// URL that GitHub shows you for your repository. (Update: to...
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`Apache` `localhost/~username/` not working

...ut nothing seems to work. The main pages are OK, the user pages give a 404 error. Any ideas? – Gik Apr 28 '16 at 12:45  |  show 9 more comment...
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Upload files with HTTPWebrequest (multipart/form-data)

... Took the code above and fixed because it throws Internal Server Error 500. There are some problems with \r\n badly positioned and spaces etc. Applied the refactoring with memory stream, writing directly to the request stream. Here is the result: public static void HttpUploadFile(stri...
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python numpy ValueError: operands could not be broadcast together with shapes

...nflicting numbers in the first dimension (97 and 2). That is what the ValueError above is complaining about. The second dimension would be ok, as number 1 does not conflict with anything. For more information on broadcasting rules: http://docs.scipy.org/doc/numpy/user/basics.broadcasting.html (Ple...
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How do I add BundleConfig.cs to my project?

...ile, and you should follow these steps: http://www.techjunkieblog.com/2015/05/aspnet-mvc-empty-project-adding.html If you are using "ASP.NET 5" it has stopped using "bundling and minification" instead was replaced by gulp, bower, and npm. More information see https://jeffreyfritz.com/2015/05/where-...