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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
...device even by hitting the home button with background mode set to YES in -Info.plist.
My solution:
-(void) viewWillAppear: (BOOL) animated { [self.tableView reloadData];}
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...start from reading about processor functions you are using, there are some info, especially about rsqrt (cpu is using internal lookup table with huge approximation, which makes it much simpler to get the result). It may seem, that rsqrt is so much faster than sqrt, that 1 additional mul operation (w...
What is the memory consumption of an object in Java?
...y at an object's old location to hold the garbage-collector's book-keeping information avoids the need to allocate other memory for that purpose, but may impose a minimum object size which is larger than would otherwise be required. I think at least one version of .NET garbage collector uses that a...
How are parameters sent in an HTTP POST request?
...d). Your answer is sufficient, while it would be extra nice if it had more info on multipart/form-data. For those interested though, here's a question about it.
– Camilo Martin
Jan 27 '13 at 19:40
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“Large data” work flows using pandas
...ly NEW ones
# (e.g. so you don't overlap from the other tables)
# add this info to the group_map
store.append(new_group, new_frame.reindex(columns = new_columns_created, copy = False), data_columns = new_columns_created)
When you are ready for post_processing:
# This may be a bit tricky; and depe...
Difference between class and type
...refer to as a variable has a type, and classes are a kind of a type.
More info here: http://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html
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How does the main() method work in C?
...is called), or at least select one from several pre-compiled alternatives. Information could be stored in the object file about which of the supported forms of main is being used. The linker can look at this info, and select the correct version of the start-up module which contains a call to main w...
Why do std::shared_ptr work
...at when you construct a shared_ptr<T> from a shared_ptr<U> the information on what destructor to call is also passed around in the deleter.
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Why do some functions have underscores “__” before and after the function name?
...us(e.status_code)
except:
logging.error("_worker problem", exc_info=True)
self.set_status(500)
tornado.ioloop.IOLoop.instance().add_callback(self.async_callback(self.results))
...
and the child that have a _worker method
class Handler(tornado.web.RequestHandler, Threadab...
Dictionary vs Object - which is more efficient and why?
...d(*args, **kw)
e = datetime.now()
sizeMb = process.memory_info().rss / 1024 / 1024
sizeMbStr = "{0:,}".format(round(sizeMb, 2))
print('Time Taken = %s, \t%s, \tSize = %s' % (e - s, method.__name__, sizeMbStr))
return timed
class Obj(object):
def __init__(s...