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How can I generate an ObjectId with mongoose?
...s really unique? does mongoose any check before?
– R01010010
Jun 6 '16 at 9:49
1
@R01010010 check...
Simple way to calculate median with MySQL
...OOR((4+2)/2); -- when total_rows is 4, avg rows 2 and 3
Finally, MariaDB 10.3.3+ contains a MEDIAN function
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What is an existential type?
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These are all good examples, but I choose to answer it a little bit differently. Recall from math, that ∀x. P(x) means "for all x's, I can prove that P(x)". In other words, it is a kind of function, you give me an x and I have a method to prove it for you.
In type theory, we are not ta...
HTML text input allow only numeric input
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The type="number" does not actually prevent entering invalid text into the field; appears that you can even cut and paste garbage data into...
How to get the value from the GET parameters?
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2106
JavaScript itself has nothing built in for handling query string parameters.
Code running in...
How to state in requirements.txt a direct github source
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answered May 16 '13 at 10:25
stalkstalk
10.7k44 gold badges2727 silver badges5151 bronze badges
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...you won't need to specify the dtype)
In [24]: s = Series([Timestamp('20130101'),np.nan,Timestamp('20130102 9:30')],dtype='M8[ns]')
In [25]: s
Out[25]:
0 2013-01-01 00:00:00
1 NaT
2 2013-01-02 09:30:00
dtype: datetime64[ns]``
In [26]: pd.isnull(s)
Out[26]:
0 False
1 ...
QString to char* conversion
...n app(argc, argv);
QString str1 = "Test";
QByteArray ba = str1.toLocal8Bit();
const char *c_str2 = ba.data();
printf("str2: %s", c_str2);
return app.exec();
}
So perhaps you're having other problems. How exactly doesn't this work?
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Haskell composition (.) vs F#'s pipe forward operator (|>)
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@nicolas left to right is an arbitrary choice. You can get used to right to left.
– Martin Capodici
Nov 21 '15 at 2:22
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Notification when a file changes?
... Majid
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answered Apr 6 '09 at 14:34
SheaShea
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