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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
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Note: This answers was good when it was written 11 years ago, but now there are far better options to do this more cleanly in a single line, both using only Java built-in classes or using a utility library. See other answers below.
Since strings are immutable, you may want to use the Str...
How can I tell how many objects I've stored in an S3 bucket?
...nto your account on S3, and go Account - Usage. It seems the billing dept knows exactly how many objects you have stored!
Simply downloading the list of all your objects will actually take some time and cost some money if you have 50 million objects stored.
Also see this thread about StorageObjec...
rsync copy over only certain types of files using include option
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I don't understand how did you know what the order of the --includes were?
– Charlie Parker
Jun 14 '18 at 2:44
1
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Pros and Cons of Interface constants [closed]
...post';
const TYPE_PUT = 'put';
public function getType();
}
Now, the reason that I chose those examples is simple. The User interface is defining an enum of user types. This is very likely to expand over time and would be better suited by another pattern. But the HTTPRequest_1_1 is...
Can I create links with 'target=“_blank”' in Markdown?
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Ya know what? I agree with you and alex. I decided not to use _blank at all. It's a better user experience to keep things in one browser. They can just hit back or command-click (Mac user here :)), like you say.
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python pandas remove duplicate columns
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It sounds like you already know the unique column names. If that's the case, then df = df['Time', 'Time Relative', 'N2'] would work.
If not, your solution should work:
In [101]: vals = np.random.randint(0,20, (4,3))
vals
Out[101]:
array([[ 3...
How can I declare and define multiple variables in one line using C++?
...InputValue, presentInputValue;) or if they just happen to be the same type now but don't really need to be (uint8_t height, width; might turn into uint8_t height; uint16_t width; in the future and should have been uint8_t height; uint8_t width; to begin with).
– altendky
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Visual Studio 2013 doesn't discover unit tests
... Eventually I figured out it was #2 in my list, so I wanted to leave that knowledge, plus the other tricks I've picked up over time.
– AndyG
Mar 18 '15 at 18:50
7
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
... confused - due to rodfersou's edit after F Lekschas' comment, his code is now correct.
– eedrah
Sep 13 '18 at 17:15
1
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Normalize data in pandas
...es and stdevs assumes your sample covers the population, but sometimes we know this isn't true. It was also very useful for me when visualizing data in heatmaps. So i built a custom function (used extra steps in the code here to make it as readable as possible):
def NormData(s,low='min',center='mid...