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What is your preferred style for naming variables in R? [closed]
...ered Nov 16 '12 at 8:55
Rasmus BååthRasmus Bååth
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...
pypi UserWarning: Unknown distribution option: 'install_requires'
...ed Nov 28 '11 at 15:38
Fredrik HåårdFredrik Håård
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Determine the line of code that causes a segmentation fault?
...rite tool to the list: Address Sanitizers (often abbreviated ASAN).
Modern¹ compilers come with the handy -fsanitize=address flag, adding some compile time and run time overhead which does more error checking.
According to the documentation these checks include catching segmentation faults by def...
Extract subset of key-value pairs from Python dictionary object?
...works in 2.7 too):
{k: bigdict[k] for k in ('l', 'm', 'n')}
Update: As Håvard S points out, I'm assuming that you know the keys are going to be in the dictionary - see his answer if you aren't able to make that assumption. Alternatively, as timbo points out in the comments, if you want a key tha...
Does PostgreSQL support “accent insensitive” collations?
... unaccent() always substitutes a single letter:
SELECT unaccent('Œ Æ œ æ ß');
unaccent
----------
E A e a S
You will love this update to unaccent in Postgres 9.6:
Extend contrib/unaccent's standard unaccent.rules file to handle all
diacritics known to Unicode, and expand ligatures cor...
Difference between single and double square brackets in Bash
...Bash 4.3.11:
POSIX vs Bash extension:
[ is POSIX
[[ is a Bash extension¹ documented at: https://www.gnu.org/software/bash/manual/bash.html#Conditional-Constructs
regular command vs magic
[ is just a regular command with a weird name.
] is just an argument of [ that prevents further argument...
What is the difference between string primitives and String objects in JavaScript?
... the Annotated ES5 spec. with regard to resolving properties (and "methods"¹) of primitive values:
NOTE The object that may be created in step 1 is not accessible outside of the above method. An implementation might choose to avoid the actual creation of the object. [...]
At very low level, S...
Generating random whole numbers in JavaScript in a specific range?
...o-complement with much smaller range than Number.MAX_SAFE_INTEGER (2³²⁻¹ vs. 2⁵³), thus you have to use it with caution!
– le_m
Jun 6 '16 at 1:49
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Filling a DataSet or DataTable from a LINQ query result set
...wered Aug 15 '08 at 16:42
Lars MæhlumLars Mæhlum
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How to use the IEqualityComparer
...ull of unnecessary code. It could be rewritten as follows (same semantics, ¼ of the code, more readable):
public bool Equals(Class_reglement x, Class_reglement y)
{
return x.Numf == y.Numf;
}
Lastly, the ToList call is unnecessary and time-consuming: AddRange accepts any IEnumerable so conve...