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Common use-cases for pickle in Python
...hon data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbitrary python object to a string so that it can be used as a dictionary key (e.g. for caching & memoization).
There are some issues with the last one ...
How do I start PowerShell from Windows Explorer?
...owershell you could also type powershell_ise which is nicer since it is finally resizable and has a proper font.
– Michael S.
Feb 14 '15 at 10:38
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HTML5 form required attribute. Set custom validation message?
...ustomValidity works slightly differently to what I understood when I originally answered. If setCustomValidity is set to anything other than the empty string it will cause the field to be considered invalid; therefore you must clear it before testing validity, you can't just set it and forget.
Furt...
How to post JSON to a server using C#?
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Don't build JSON manually. It is easy to make mistakes that allow for JSON injection.
– Florian Winter
Feb 27 '17 at 14:08
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Sublime Text from Command Line
I installed Sublime Text and wanted to know how to open rb files in it from the terminal. I saw What is the command to make Sublime Text my core editor? and I see that I can make Sublime my core editor, but I want to be able to type
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When to use ref and when it is not necessary in C#
...or C++. Changes to the value of the parameter itself won't be seen by the caller, but changes in the object which the reference points to will be seen.
When a parameter (of any kind) is passed by reference, that means that any changes to the parameter are seen by the caller - changes to the paramet...
Method can be made static, but should it?
...nce members of the C# Language Specification explains the difference. Generally, static methods can provide a very small performance enhancement over instance methods, but only in somewhat extreme situations (see this answer for some more details on that).
Rule CA1822 in FxCop or Code Analysis stat...
css 'pointer-events' property alternative for IE
...mp; there's always a lesson in haste makes waste. Besides, Mozilla said it all "Warning: The use of pointer-events in CSS for non-SVG elements is experimental. The feature used to be part of the CSS3 UI draft specification but, due to many open issues, has been postponed to CSS4."
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Best way to test exceptions with Assert to ensure they will be thrown
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Although your code is functionally sound I do not recommend using the ExpectedException attribute (since it's too constraining and error-prone) or to write a try/catch block in each test (since it's too complicated and error-prone). Use a well-designed as...
When to use references vs. pointers
...going in undefined-behaviour-land;
the reference attribute version doesn't allow (without easy to spot tricks) the problem with 1.
the reference attribute version is simpler to understand for the user: you have to provide a valid object, not something that could be null.
If the behaviour of the fun...