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Initializing a static std::map in C++
... if you are making an archive). That's the reason I try not to use it. I know you can choose what files to include/not include, but you usually don't want to have to worry about Boost's cross dependencies with itself so you just copy the whole thing around.
– bobobobo
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Django - Circular model import issue
...m django.db.models import get_model
Theme = get_model('themes', 'Theme')
Now you can use Theme
For Django 1.7+:
from django.apps import apps
apps.get_model('app_label.model_name')
share
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impro...
PDOException SQLSTATE[HY000] [2002] No such file or directory
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I would love to know WHY localhost doesn't work and 127.0.0.1 does??
– Justin
Oct 18 '14 at 2:35
6
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In Ruby how do I generate a long string of repeated text?
...string replication. When you reverse the expression, we get 999999.*("0"). Now we are talking about the * method in the FixNum class, and that method refuses to take strings as arguments. It certainly could (for example, automatically making a best-effort to convert the argument to a FixNum) but the...
How to avoid circular imports in Python? [duplicate]
I know the issue of circular imports in python has come up many times before and I have read these discussions. The comment that is made repeatedly in these discussions is that a circular import is a sign of a bad design and the code should be reorganised to avoid the circular import.
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javascript regex - look behind alternative?
... that, the lookbehind has the same limitation which I didn't realise until now...
– daniel
Sep 11 '11 at 7:40
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python's re: return True if string contains regex pattern
...similar case where I want to search for an exact string (xyz) and want to know which is a more efficient way to do this, should I use python's 'xyz' in given_text or use re.compile(r'xyz').search(given_text) ?
– bawejakunal
May 4 '16 at 9:01
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Get the value of an instance variable given its name
...e public. What you should do is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
Note that you can reopen any existing class and make a private ivar into a reader. Since an accessor is just a method, you can do Computer.new(4).send(var_that_evaluates_to_cpus)
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Why doesn't JavaScript support multithreading?
...cts as the main page concurrently. They cannot access the DOM as far as I know. Most of this is semantics though, web workers look promising for all intents and purposes.
– Kamiel Wanrooij
Jun 29 '12 at 13:28
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What version of javac built my jar?
... file, and it could have been built in any one of three JDKs. We need to know exactly which one, so we can certify compatibility. Is the compiler version embedded somewhere in the class files or jar?
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