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Go Error Handling Techniques [closed]

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Why is creating a Thread said to be expensive?

...1.4.1 on a 2002 vintage dual processor Xeon running 2002 vintage Linux. A more modern platform will give better numbers ... and I can't comment on the methodology ... but at least it gives a ballpark for how expensive thread creation is likely to be. Peter Lawrey's benchmarking indicates that thre...
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In Windows Azure: What are web role, worker role and VM role?

... EDIT 3/3/2013 - updated to reference UDP endpoints, Virtual Machines, and more languages EDIT 6/6/2013 - updated to reflect the discontinuation of VM Role, and update to web/worker role baseline OS images to Windows Server 2012 Good link by @Vladimir. A bit more clarification: All roles (web, wor...
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Defining a variable with or without export

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Picking a random element from a set

...andom().nextInt(size); // In real life, the Random object should be rather more shared than this int i = 0; for(Object obj : myhashSet) { if (i == item) return obj; i++; } share | i...
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How to use if-else option in JSTL

... Aside from the wrapper tag (choose), I don't see how this is any more verbose than if/elseif/else would be. One wrapper tag hardly constitutes 'clunky as hell', no? – Steven Benitez Jan 8 '11 at 18:25 ...
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How do I ZIP a file in C#, using no 3rd-party APIs?

...ng .NET 3.5? You could use the ZipPackage class and related classes. Its more than just zipping up a file list because it wants a MIME type for each file you add. It might do what you want. I'm currently using these classes for a similar problem to archive several related files into a single fil...
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How to install PyQt4 on Windows using pip?

...p27 means C-python version 2.7, cp35 means python 3.5, etc. Since Qt is a more complicated system with a compiled C++ codebase underlying the python interface it provides you, it can be more complex to build than just a pure python code package, which means it can be hard to install it from source....
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Is there a portable way to get the current username in Python?

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Compare given date with today

...t, depending on your exact circumstances, but it might also be a whole lot more convenient and lead to more maintainable code - we'd need to know more to truly make that judgement call. For the correct timezone, you can use, for example, date_default_timezone_set('America/New_York'); Click here ...