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Rails 2.3-style plugins and deprecation warnings running task in Heroku
...o be able to turn plugins on/off during my capistrano deployment, based on what flavor of the app I was deploying. Before I used config.plugins to specify what plugin to use. With this approach I'm using a "require" on config.before_configuration instead.
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Best Practice for Exception Handling in a Windows Forms Application?
...'ve read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translate the basic concepts into a good exception-handling model in my application.
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How to add a filter class in Spring Boot?
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what if i want to add multiple filters? @Opal
– verystrongjoe
Sep 15 '15 at 1:37
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Determine which element the mouse pointer is on top of in JavaScript
...There's a really cool function called document.elementFromPoint which does what it sounds like.
What we need is to find the x and y coords of the mouse and then call it using those values:
var x = event.clientX, y = event.clientY,
elementMouseIsOver = document.elementFromPoint(x, y);
documen...
Python list of dictionaries search
...: 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different API:
next((item for item in dicts if item["name"] == "Pam"), None)
And to find the index of the item, rather than the item itself, yo...
What are the differences between node.js and node?
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The package node is not related to node.js.
nodejs is what you want, however it is arguably better to have the command be called node for compatibility with scripts that use #!/usr/bin/env node.
You can either just create a symlink in your path:
sudo ln -s `which nodejs` /usr/lo...
Is there a label/goto in Python?
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No, Python does not support labels and goto, if that is what you're after. It's a (highly) structured programming language.
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Why can't an anonymous method be assigned to var?
...ere are infinitely many possible delegate types that you could have meant; what is so special about Func that it deserves to be the default instead of Predicate or Action or any other possibility? And, for lambdas, why is it obvious that the intention is to choose the delegate form, rather than the ...
How do I find where an exception was thrown in C++?
... std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
<< e.what() << std::endl;
}
catch (...) {
std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
<< std::endl;
}
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Inner join vs Where
...ear eventually. Before I used that old syntax in a new query I would check what Oracle plans to do with it.
I prefer the newer syntax rather than the mixing of the join criteria with other needed where conditions. In the newer syntax it is much clearer what creates the join and what other condition...