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Reference: What is variable scope, which variables are accessible from where and what are “undefined

...e accessible". Just because you wrote $foo = 'bar'; once somewhere in your application doesn't mean you can refer to $foo from everywhere else inside the application. The variable $foo has a certain scope within which it is valid and only code in the same scope has access to the variable. How is a ...
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Why is using a wild card with a Java import statement bad?

... your local namespace. For example, let's say that you're writing a Swing app, and so need java.awt.Event, and are also interfacing with the company's calendaring system, which has com.mycompany.calendar.Event. If you import both using the wildcard method, one of these three things happens: You ...
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MVC4 StyleBundle not resolving images

... the comment below by @Hao Kung, alternatively this may now be achieved by applying a CssRewriteUrlTransformation (Change relative URL references to CSS files when bundled). NOTE: I have not confirmed comments regarding issues with rewriting to absolute paths within a virtual directory, so this ma...
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Why are static variables considered evil?

...a programmer who is new to the corporate world. Recently I've developed an application using Groovy and Java. All through the code I wrote used quite a good number of statics. I was asked by the senior technical lot to cut down on the number of statics used. I've googled about the same, and I find...
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

... Your app is in Java I take it? Try invoking Java with the file-encoding parameter specifying UTF-8, e.g. java -Dfile.encoding=UTF-8 or add an appropriate switch in your Tomcat (etc.) config file. – Eric J. ...
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Simple argparse example wanted: 1 argument, 3 results

... argument like this: parser.add_argument('install', help='Install the app') (Notice you can't define a positional argument with required=True) – Diego Navarro Sep 20 '11 at 6:54 ...
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Are non-synchronised static methods thread safe if they don't modify static class variables?

...ead, even if the other thread is properly synchronized. Both threads need appropriate synchronization for thread safety to be maintained. – Warren Dew Jul 22 '17 at 15:39 ...
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What is the global interpreter lock (GIL) in CPython?

...cally it means that threads in Python are only good for blocking I/O; your app will never go above 1 CPU core of processor usage – Ana Betts Aug 18 '09 at 15:26 8 ...
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nginx upload client_max_body_size issue

...andles the bulk flow of binary data from multi-part-form clients into your app's logic. The clean setting frees up memory and consumption limits by instructing nginx to store incoming buffer in a file and then clean this file later from disk by deleting it. Set body_in_file_only to clean and adjus...
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Using GPU from a docker container?

...ve built a container FROM nvidia/cuda and the container runs fine, but the app (Wowza) isn't recognizing the GPUs while it does just fine when run directly on the host (this host, so I know drivers are fine). I'm running 361.28. The host is EC2 using the NVidia AMI on g2.8xlarge. ...