大约有 40,000 项符合查询结果（耗时：0.0267秒） [XML]
std::vector performance regression when enabling C++11
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mongodb/mongoose findMany - find all documents with IDs listed in array
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C99 stdint.h header and MS Visual Studio
...
Turns out you can download a MS version of this header from:
https://github.com/mattn/gntp-send/blob/master/include/msinttypes/stdint.h
A portable one can be found here:
http://www.azillionmonkeys.com/qed/pstdint.h
Thanks to the Software Ramblings blog.
...
Cartesian product of multiple arrays in JavaScript
...June 2015 and developed much earlier, better known as ES6 or ES2015. See:
http://www.ecma-international.org/ecma-262/6.0/
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/rest_parameters
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Spread_operator...
How update the _id of one MongoDB Document?
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How do I create a simple 'Hello World' module in Magento?
...This will let the system know that we're handling any URLs in the form of
http://example.com/magento/index.php/helloworld
So, in your configuration file, add the following section.
<config>
<!-- ... -->
<frontend>
<routers>
<!-- the <hellowor...
How do I get a file extension in PHP?
...
Example URL: http://example.com/myfolder/sympony.mp3?a=1&b=2#XYZ
A) Don't use suggested unsafe PATHINFO:
pathinfo($url)['dirname'] ???? 'http://example.com/myfolder'
pathinfo($url)['basename'] ???? 'sympony.mp3?a=1&b=2#XYZ' ...
MongoDB: Combine data from multiple collections into one..how?
... together by using the "reduce" out option in MongoDB 1.8+ map/reduce (see http://www.mongodb.org/display/DOCS/MapReduce#MapReduce-Outputoptions). You need to have some key in both collections that you can use as an _id.
For example, let's say you have a users collection and a comments collection ...
mongodb: insert if not exists
...
As of MongoDB 2.4, you can use $setOnInsert (http://docs.mongodb.org/manual/reference/operator/setOnInsert/)
Set 'insertion_date' using $setOnInsert and 'last_update_date' using $set in your upsert command.
To turn your pseudocode into a working example:
now = dateti...
Use numpy array in shared memory for multiprocessing
...e numpy arrays between python interpreters. Maybe you will find it handy.
https://pypi.python.org/pypi/SharedArray
Here's how it works:
import numpy as np
import SharedArray as sa
# Create an array in shared memory
a = sa.create("test1", 10)
# Attach it as a different array. This can be done fr...