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Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...omeone might pass in a lambda that uses the current time, or a calculation based on... hmm. I would have expected to just have the second method do V value; return dict.TryGetValue(key, out value) ? value : defVal;
– Jon Coombs
Mar 24 '14 a...
Relational table naming convention [closed]
...who has not read any of the standard materials and has no knowledge of database theory.
Some of the wonderful things about Standards are:
they are all integrated with each other
they work together
they were written by minds greater than ours, so we do not have to
debate them.
The standard ta...
Converting Integer to String with comma for thousands
I want to convert an Integer 35634646 to have the thousand "," so it should be 35,634,646.
13 Answers
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I want to get the type of a variable at runtime
... is the same class as b
A ClassTag is limited in that it only covers the base class, but not its type parameters. That is, the ClassTag for List[Int] and List[String] is the same, List. If you need type parameters, then you must use a TypeTag instead. A TypeTag however, cannot be obtained from a v...
How to reliably open a file in the same directory as a Python script
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What are Flask Blueprints, exactly?
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Instead you can segment or split bigger codes into separate file, mostly based on functionality. Like bricks forming a wall.
Hope this helped. Since this is a theoretical question, posting no codes.
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What is the best way to implement nested dictionaries?
...oo'])) - min(timeit.repeat(lambda: AutoVivification()))
2.138362169265747
Based on performance, dict.setdefault works the best. I'd highly recommend it for production code, in cases where you care about execution speed.
If you need this for interactive use (in an IPython notebook, perhaps) then per...
How do I find all files containing specific text on Linux?
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Based on my experience, the -i makes it slow down a lot, so don't use it if not necessary. Test it in a certain dir and then generalise. It should be completed within few minutes. I think a regular expression would make it sl...
Convert boolean result into number/integer
... C. Buljan
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answered May 7 '13 at 9:34
RenéRené
9,06644 gold badges3...
sql “LIKE” equivalent in django query
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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