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Simple explanation of clojure protocols
...: Interfaces and Extension Methods in C# and Java, Monkeypatching in Ruby, Python, ECMAScript.
Note that Clojure actually already has a mechanism for solving the Expression Problem: Multimethods. The problem that OO has with the EP is that they bundle operations and types together. With Multimethod...
How and when to use ‘async’ and ‘await’
...tion is done, the OS will invoke the callback. This is what Node.js or the Python Twisted framework does and they have some nice explanation, too.
– Roman Plášil
Aug 18 '13 at 16:59
...
Best practice multi language website
... flat file which could be easily written to from your admin panel. JSON or XML may provide a good structure for supporting them.
Notes Regarding A Few Other Options
PHP-based On-The-Fly Translation
I can't see that these offer any advantage over pre-processed translations.
Front-end Based Transl...
Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
...y provide no admin access, which makes installing some things (in my case, Python-like things such as pip) a nightmare.
– SilentSteel
Jul 28 '13 at 6:41
1
...
Apply multiple functions to multiple groupby columns
...t, it's just a much-more-detailed comment on Ted's answer, plus code/data. Python/pandas is not my first/best, but I found this to read well:
df.groupby('group') \
.apply(lambda x: pd.Series({
'a_sum' : x['a'].sum(),
'a_max' : x['a'].max(),
'b_mean' : x['b'].mea...
Should I use JSLint or JSHint JavaScript validation? [closed]
...tandard whitespace conventions for other languages in the family (C, Java, Python, etc...), which are often followed as conventions in Javascript as well. Since I'm writing in various of these languages throughout the day, and working with team members who don't like Lint-style whitespace in our cod...
What is the optimal Jewish toenail cutting algorithm?
... five toes per foot*, so there are only 5! = 120 unrestricted sequences.
Python example:
#seq is only valid when consecutive elements in the list differ by at least two.
def isValid(seq):
for i in range(len(seq)-1):
a = seq[i]
b = seq[i+1]
if abs(a-b) == 1:
...
SQL select join: is it possible to prefix all columns as 'prefix.*'?
...through a result set for a list of columns in a scripting language such as Python or PHP.
SELECT '' as table1_dummy, table1.*, '' as table2_dummy, table2.*, '' as table3_dummy, table3.* FROM table1
JOIN table2 ON table2.table1id = table1.id
JOIN table3 ON table3.table1id = table1.id
I realize thi...
How do I use valgrind to find memory leaks?
...n even be used for other
languages when configured properly (see this for Python).
To run Valgrind, pass the executable as an argument (along with any
parameters to the program).
valgrind --leak-check=full \
--show-leak-kinds=all \
--track-origins=yes \
--verbose \
...
Is there any way to put malicious code into a regular expression?
...pression Matching Can Be Simple And Fast
(but is slow in Java, Perl, PHP, Python, Ruby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit...