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Why are C# interface methods not declared abstract or virtual?
...Interface { }
If Base and Derived are declared in the same assembly, the compiler will make Base::Method virtual and sealed (in the CIL), even though Base doesn't implement the interface.
If Base and Derived are in different assemblies, when compiling the Derived assembly, the compiler won't cha...
rails - Devise - Handling - devise_error_messages
...e this out myself. I just found this issue logged on Github https://github.com/plataformatec/devise/issues/issue/504/#comment_574788
Jose is saying that devise_error_messsages! method is just a stub (though it contains implementation) and that we're supposed to override/replace it. It would have be...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
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Knight's Shortest Path on Chessboard
I've been practicing for an upcoming programming competition and I have stumbled across a question that I am just completely bewildered at. However, I feel as though it's a concept I should learn now rather than cross my fingers that it never comes up.
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PHP: exceptions vs errors?
...;-- actually, this isn't really true. E_ERROR and E_PARSE are the two most common unrecoverable errors (there are a couple of others) but the vast majority of errors you'll see in dev are recoverable (E_NOTICE, E_WARNING et al). Unfortunately PHP's error handling is a complete mess - all kinds of th...
How can I change my Cygwin home folder after installation?
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Starting with Cygwin 1.7.34, the recommended way to do this is to add a custom db_home setting to /etc/nsswitch.conf. A common wish when doing this is to make your Cygwin home directory equal to your Windows user profile directory. This setting will do that:
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When should I use Arrow functions in ECMAScript 6?
...rected at people who have thought about code style in the context of the upcoming ECMAScript 6 (Harmony) and who have already worked with the language.
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Getting RAW Soap Data from a Web Reference Client running in ASP.net
...onses are Gzipped and pulling either the ASCII or the hex codes out of the combined output is a pain. Are their alternative output methods which are either binary or text only?
– user565869
Jan 14 '13 at 22:33
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How to implement the activity stream in a social network
...ities (1 record per activity / "thing that happened") Make the records as compact as you can. Structure so that you can quickly grab a batch of activities by activity ID or by using a set of friend IDs with time constraints.
Publish the activity IDs to Redis whenever an activity record is created, ...
Benefits of EBS vs. instance-store (and vice-versa) [closed]
...cordingly. While EBS-backed instances provide certain level of durability compared to ephemeral storage instances, they can and do fail. Have an AMI from which you can launch new instances as needed in any availability zone, back up your important data (e.g. databases), and if your budget allows i...