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Want to find records with no associated records in Rails
...nd you can also chain this with other Arel methods: Person.without_friends.order("name").limit(10)
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Is it possible to decompile a compiled .pyc file into a .py file?
... .pyc bytecode into .py, whereas unpyclib crashed with an exception.
With all these tools, you get your code back including variable names, but without the comments.
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Oracle: how to UPSERT (update or insert into a table?)
...se uses the undo stack; so Oracle will manage the final state based on the order of when the concurrent transactions started/completed. So, you'll never have a race condition if a constraint check is done before the insert regardless of how many concurrent calls are made to same SQL code. Worst case...
Python's most efficient way to choose longest string in list?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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RGB to hex and hex to RGB
...notation, i.e. #rrggbb. Your code is almost correct, except you've got the order reversed. It should be:
var decColor = red * 65536 + green * 256 + blue;
Also, using bit-shifts might make it a bit easier to read:
var decColor = (red << 16) + (green << 8) + blue;
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Vim search and replace selected text
...in the selection (I'd have to manually process those characters somehow in order for the :s command to work):
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How to build a jar using maven, ignoring test results? [duplicate]
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Use -DskipTests=true instead of -Dmaven.test.skip=true in order to skip tests but compile them.
Using -Dmaven.test.failure.ignore=true will also work but is not very nice.
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Copy a stream to avoid “stream has already been operated upon or closed”
...here the developer is forced to store intermediate results (collecting) in order to process a stream in two different ways. The implication that the stream is generated more than once (unless you collect it) seems clear - because otherwise you wouldn't need a collect method.
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Resolving LNK4098: defaultlib 'MSVCRT' conflicts with
...ies is to add /verbose:lib to the additional linker options. It shows the order that .lib files are loaded in, allowing you to see where the incorrect one was pulled in.
– obmarg
Mar 13 '13 at 12:18
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Click through div to underlying elements
...'scale');
background: none !important;
Here is a basic example page with all the code.
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