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eval command in Bash and its typical uses
After reading the bash man pages and with respect to this post .
10 Answers
10
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What does {0} mean when initializing an object?
When {0} is used to initialize an object, what does it mean? I can't find any references to {0} anywhere, and because of the curly braces Google searches are not helpful.
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Python idiom to return first item or None
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Python 2.6+
next(iter(your_list), None)
If your_list can be None:
next(iter(your_list or []), None)
Python 2.4
def get_first(iterable, default=None):
if iterable:
for item in iterable:
return item
return defa...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...h file or directory...compilation terminated error. Can anyone tell me if it's a problem with my code, or some esoteric subtlety with Cython?
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The breakpoint will not currently be hit. No symbols have been loaded for this document in a Silverl
...follow
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edited Mar 1 '12 at 23:50
community wiki
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How do I find the MySQL my.cnf location
...the my.cnf configuration file, similar to how PHP's phpinfo() locates its php.ini ?
25 Answers
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Is it possible to use Swift's Enum in Obj-C?
...that converted class. I searched In the Pre-Release Docs and couldn't find it or maybe I missed it. Is there a way to use Swift enum in Obj-C Class? Or a link to the doc of this issue?
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Why doesn't std::queue::pop return value.?
...rough this page but I am not able to get the reason for the same . There it is mentioned that
7 Answers
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When to prefer JSON over XML?
...LT
Your messages include a lot of marked-up text
You need to interoperate with environments that don't support JSON
Favor JSON over XML when all of these are true:
Messages don't need to be validated, or validating their deserialization is simple
You're not transforming messages, or transforming...
Why Qt is misusing model/view terminology?
I think that the terminology used in Qt with model/view controls is flawed. On their explanation page they state, that they simplified the MVC to MV by merging View and Controller and they are giving the following picture:
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