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How to use > in an xargs command?
...
201
Do not make the mistake of doing this:
sh -c "grep ABC {} > {}.out"
This will break unde...
Which timestamp type should I choose in a PostgreSQL database?
...CT NOW();
now
-------------------------------
2011-05-27 15:47:58.138995-07
(1 row)
test=> SELECT NOW() AT TIME ZONE 'UTC';
timezone
----------------------------
2011-05-27 22:48:02.235541
(1 row)
Note that AT TIME ZONE 'UTC' strips time zone i...
What is the difference between HashSet and List?
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215
Unlike a List<> ...
A HashSet is a List with no duplicate members.
Because a HashSet i...
How do I get indices of N maximum values in a NumPy array?
...mplest I've been able to come up with is:
In [1]: import numpy as np
In [2]: arr = np.array([1, 3, 2, 4, 5])
In [3]: arr.argsort()[-3:][::-1]
Out[3]: array([4, 3, 1])
This involves a complete sort of the array. I wonder if numpy provides a built-in way to do a partial sort; so far I haven't bee...
JPA - Returning an auto generated id after persist()
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answered Mar 16 '12 at 8:27
JB NizetJB Nizet
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Including JavaScript class definition from another file in Node.js
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210
You can simply do this:
user.js
class User {
//...
}
module.exports = User
server.js
con...
How do I create a list of random numbers without duplicates?
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edited Apr 2 '18 at 12:59
nbro
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Forking vs. Branching in GitHub
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287
You cannot always make a branch or pull an existing branch and push back to it, because you ar...
Execution of Python code with -m option or not
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Maggyero
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answered Mar 7 '14 at 12:30
Martijn Pieters...
Dealing with multiple Python versions and PIP?
...xample, I want to use pip to explicitly install things to either my site 2.5 installation or my site 2.6 installation.
23...