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Rails check if yield :area is defined in content_for
I want to do a conditional rendering at the layout level based on the actual template has defined content_for(:an__area) , any idea how to get this done?
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...68160001953743683783272702066311903448533894049486008426303248121757146615064636953144900245
174442911064952028008546304
50,000 => a very large number!
I agree with @SB that you should always state your assumptions: Mine is that you don't need to paste twice to double the number of characters. ...
How do you get the list of targets in a makefile?
...LIST)) : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | sort | egrep -v -e '^[^[:alnum:]]' -e '^$@$$'
Important: On pasting this, make sure that the last line is indented by exactly 1 actual tab char. (spaces do not work).
Note that so...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...reviously). Both tester applications, the synchronously multithreaded one (based on HttpWebRequest) and asynchronous I/O one (based on HTTP client) produced similar results: about 10 seconds to execute using around 3% of the CPU and 30 MB of memory. The only difference between the two testers was th...
Difference between array_map, array_walk and array_filter
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The other answers demonstrate the difference between array_walk (in-place modification) and array_map (return modified copy) quite well. However, they don't really mention array_reduce, which is an illuminating way to understand array_map and ...
Are PHP include paths relative to the file or the calling code?
...ee http://php.net/manual/en/function.include.php.
Files are included based on the file path given or, if none is given,
the include_path specified. If the file isn't found in the
include_path, include will finally check in the calling script's own
directory and the current working direct...
Can you use an alias in the WHERE clause in mysql?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Abort makefile if variable not set
How could I abort a make/makefile execution based on a makefile's variable not being set/valued?
5 Answers
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Count the number occurrences of a character in a string
...ould override the mutator and accessor methods by subclassing defaultdict (base class' ones are read-only):
class CICounter(defaultdict):
def __getitem__(self, k):
return super().__getitem__(k.lower())
def __setitem__(self, k, v):
super().__setitem__(k.lower(), v)
chars =...
How do I override __getattr__ in Python without breaking the default behavior?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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