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How can I run an external command asynchronously from Python?
...way. That's why everyone says to use subprocess.
For more information, read http://docs.python.org/library/os.html#os.system
The subprocess module provides more
powerful facilities for spawning new
processes and retrieving their
results; using that module is
preferable to using this ...
Why are regular expressions so controversial? [closed]
...gular expressions because they're slow, but rather because they're hard to read and write, as well as tricky to get right. While there are some situations where regular expressions provide an effective, compact solution to the problem, they are sometimes shoehorned into situations where it's better ...
How do I set/unset a cookie with jQuery?
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Update April 2019
jQuery isn't needed for cookie reading/manipulation, so don't use the original answer below.
Go to https://github.com/js-cookie/js-cookie instead, and use the library there that doesn't depend on jQuery.
Basic examples:
// Set a cookie
Cookies.set('name...
How to check if an option is selected?
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It looks like you didn't read my answer. this.selected can be used instead of $(this).is(":selected") I guess there is no need for a jsperf for this, right? I have nothing against using jQuery!, but use it when you need it, not when it give nothing b...
Where are my postgres *.conf files?
... of locate. Imagine these steps: Postgres version x is installed, updatedb reads the location of all files, postgres gets upgarded to version x+1. Now the cached data of locate is too old .... This is not reliable.
– guettli
May 2 '18 at 10:59
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What's the point of const pointers?
... If I were designing a new language, declared objects would be read-only ("const") by default. You'd need some special syntax, perhaps a "var" keyword, to make an object writable.
– Keith Thompson
Oct 12 '11 at 1:57
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Convert a matrix to a 1 dimensional array
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Either read it in with 'scan', or just do as.vector() on the matrix. You might want to transpose the matrix first if you want it by rows or columns.
> m=matrix(1:12,3,4)
> m
[,1] [,2] [,3] [,4]
[1,] 1 4 7 10
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Hiding a password in a python script (insecure obfuscation only)
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But doesn't help the fact that the script must be readable by the user running it and the password must not.
– Martin Beckett
Oct 1 '08 at 15:35
80
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Correct way to pause Python program
...the time module but what if I have a long block of text I want the user to read?
– RandomPhobia
Jul 19 '12 at 0:34
7
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JPA and Hibernate - Criteria vs. JPQL or HQL
...HQL for static and complex queries, because it's much easier to understand/read HQL. Also, HQL is a bit more powerful, I think, e.g. for different join types.
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