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MongoDB Aggregation: How to get total records count?
... $count: 'count'
}
]
}
]);
The result will be (with for ex 100 total results):
[
{
"paginatedResults":[{...},{...},{...}, ...],
"totalCount":[{"count":100}]
}
]
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Detect if a NumPy array contains at least one non-numeric value?
...ny()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" % timeit.Timer(m, s).timeit(1000), m
Results:
0.11 s num...
SQL Server SELECT INTO @variable?
...TempCustomer TABLE
(
CustomerId uniqueidentifier,
FirstName nvarchar(100),
LastName nvarchar(100),
Email nvarchar(100)
);
INSERT INTO
@TempCustomer
SELECT
CustomerId,
FirstName,
LastName,
Email
FROM
Customer
WHERE
CustomerId = @CustomerId
...
Using build types in Gradle to run same app that uses ContentProvider on one device
...d:authorities with the current package name (which should be unique)
*
* V1.0 : Initial version
* V1.1 : Support for ".res-auto" in strings added,
* eg. use "<string name="auth">.res-auto.path.to.provider</string>"
*
*/
def overrideProviderAuthority(buildVariant) {
def ...
Are Javascript arrays sparse?
...k you actually get a dense array if you say something like foo = new Array(10000). However, this is supposed to work: foo = Array.apply(null, {length: 10});.
– doubleOrt
Oct 2 '17 at 11:04
...
SHFileOperation函数总结（文件夹的移动、复制、删除） - C/C++ - 清泛网 -...
...,它的取值为如下：
FO_COPY: 拷贝文件pFrom到pTo 的指定位置。
FO_RENAME: 将pFrom的文件名更名为pTo的文件名。
FO_MOVE: 将pFrom的文件移动到pTo的地方。
FO_DELETE： 删除pFrom指定的文件。
使用该函数进行文件拷贝...
How do you get AngularJS to bind to the title attribute of an A tag?
...e not using a very earlier version of Angular). Here's a demo fiddle using v1.2.2:
Fiddle
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In-memory size of a Python structure
...
Precision seems to be 1/100MB, or 10.24 bytes. This is fine for macro-analysis, but I doubt that such precision would lead to an accurate comparison of the data structures as asked in the question.
– Zoran Pavlovic
...
How do you test running time of VBA code?
...ble(m_CounterStart)
crStop = LI2Double(m_CounterEnd)
TimeElapsed = 1000# * (crStop - crStart) / m_crFrequency
End Property
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how to draw smooth curve through N points using javascript HTML5 canvas?
... x1,y1, x2,y2, ...xn,yn.
Use it like this:
var myPoints = [10,10, 40,30, 100,10]; //minimum two points
var tension = 1;
drawCurve(ctx, myPoints); //default tension=0.5
drawCurve(ctx, myPoints, tension);
The function above calls two sub-functions, one to calculate the smoothed points. This retur...