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Javascript Drag and drop for touch devices [closed]
... look at the code from June 30, 2011; my answer will make a lot more sense based on that version.
– E.Z. Hart
Nov 13 '14 at 2:13
...
How to implement the factory method pattern in C++ correctly
...t;
void registerType(QString name)
{
static_assert(std::is_base_of<T, TDerived>::value, "Factory::registerType doesn't accept this type because doesn't derive from base class");
_createFuncs[name] = &createFunc<TDerived>;
}
T* create(QString name) {
...
If table exists drop table then create it, if it does not exist just create it
...plexity increases and locking functions in MySQL aren't safe for statement-based replication.
If the table data should survive table definition upgrade... For general case it's far more complex story about comparing table definitions to find out differences and produce proper ALTER ... statement, w...
How to use the pass statement?
...ompileError(Exception):
pass
Similarly, classes intended as abstract base class often have an explicit empty __init__ or other methods that subclasses are supposed to derive. (e.g. pebl)
class _BaseSubmittingController(_BaseController):
def submit(self, tasks): pass
def retrieve(self,...
What is your preferred style for naming variables in R? [closed]
...
I could just be misremembering based on my own bias towards mixed case but I believe that's what RG always used when I was working for him. I figure what's good for RG is good for me!
– geoffjentry
Dec 23 '09 at 0:32...
How to copy directories in OS X 10.7.3?
... 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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Which MySQL data type to use for storing boolean values
...istinguishing between a NULL and an empty string. Even some relational databases (e.g. Oracle) don't distinguish between a zero-length string and a NULL.
– spencer7593
Jun 10 '15 at 14:15
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R apply function with multiple parameters
... 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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Are static class variables possible in Python?
...an coexist (unlike with __slots__).
Example usage:
class MyBaseClass(metaclass = StaticVarsMeta):
__statics__ = {'a','b','c'}
i = 0 # regular attribute
a = 1 # static var defined (optional)
class MyParentClass(MyBaseClass):
_...
Which method performs better: .Any() vs .Count() > 0?
...ve used LINQ to filter it etc (Where etc), you will have an iterator-block based sequence, and so this ICollection<T> optimisation is useless.
In general with IEnumerable<T> : stick with Any() ;-p
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