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Python - Create a list with initial capacity
...es = [Beer()] * 99
sea = [Fish()] * many
vegetarianPizzas = [None] * peopleOrderingPizzaNotQuiche
[EDIT: Caveat Emptor The [Beer()] * 99 syntax creates one Beer and then populates an array with 99 references to the same single instance]
Python's default approach can be pretty efficient, although ...
Best way to resolve file path too long exception
...s defined as 260 characters. A local
path is structured in the following order: drive letter, colon,
backslash, name components separated by backslashes, and a terminating
null character. For example, the maximum path on drive D is "D:\some
256-character path string<NUL>" where "<NU...
Impossible to Install PG gem on my mac with Mavericks
I'm trying to install the pg gem in order to work again with my rails projects. But I get this error:
26 Answers
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Why are unnamed namespaces used and what are their benefits?
... today is. However, C++98/C++03 required things have external linkage in order to be used as template arguments. Since things in anonymous namespaces are available as template arguments, they would have external linkage (at least in pre-C++11) even if there was no way to refer to them from outsid...
How do I initialize a TypeScript object with a JSON object
...ould also be used in combination with other answers such as reflection, in order to do what you're looking for. I also wrote it in part so that I would remember it later. Looking at these answers and having used and written much more powerful libraries there doesn't appear to be anything available ...
ActiveModel::ForbiddenAttributesError when creating new user
...put by seeing if your controller will respond to the following methods (in order):
create_params
<model_name>_params such as article_params (this is
the default convention in rails for naming your param method)
resource_params (a generically named method you could specify in
each controller)...
Using capistrano to deploy from different git branches
...
as stated by @lulalala I need to use lowercase -s in order for it to fetch the specified branch.
– Jahan
Dec 6 '13 at 23:35
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When would anyone use a union? Is it a remnant from the C-only days?
...
enum BeesTypes { TYPE_B1, ..., TYPE_BN };
class A
{
private:
std::unordered_map<int, Bee> data; // C++11, otherwise use std::map
public:
Bee get(int); // the implementation is obvious: get from the unordered map
};
Then, to get the content of a union instance from data, you use a...
How to update PATH variable permanently from Windows command line?
...r updates.
Note that your application will need elevated admin rights in order to be able to modify this key.
You indicate in the comments that you would be happy to modify just the per-user environment. Do this by editing the values in HKEY_CURRENT_USER\Environment. As before, make sure that you...
Java EE web development, where do I start and what skills do I need? [closed]
..., css, etc) just like a web server does. It is comparable to Apache with a php module.
– Nemi
Dec 24 '09 at 16:16
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