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How do I best silence a warning about unused variables?
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This is how Q_UNUSED is implemented in principle.
– Dmitry Volosnykh
Jan 17 '12 at 11:02
11
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Rails Root directory path?
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which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, which is a string.
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What does the Ellipsis object do?
...[1:2, ..., 0]
Its interpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array type. Since there are more than one dimensions, slicing becomes m...
MongoDB仿关系型数据库Group聚合例子 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...数据
Dictionary dic = new Dictionary();
dic["_userName"] = ""; // 与原字段名区分开
dic["_date"] = "";
dic["_data"] = "0";
MongoServer server = new MongoClient(MongoConnStr).GetServer();
MongoDatabase db = serve...
How disable Copy, Cut, Select, Select All in UITextView
... your /, file where you need this behaviour.
– markus_p
Apr 3 '12 at 10:07
4
This only works as a...
How to use PyCharm to debug Scrapy projects
... a virtualenv with Python 3.5.0 and setting the "script" parameter to /path_to_project_env/env/bin/scrapy solved the issue for me.
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Understanding REST: Verbs, error codes, and authentication
I am looking for a way to wrap APIs around default functions in my PHP-based web applications, databases and CMSs.
10 Answ...
Most efficient method to groupby on an array of objects
...g callback functions to return a sorting criteria
– y_nk
Jul 6 '16 at 16:50
118
Here is one that ...
Case insensitive searching in Oracle
... allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters:
SQL> SET HEADING OFF
SQL> SELECT *
2 FROM NLS_SESSION_PARAMETERS
3 WHERE PARAMETER IN ('NLS_COMP', 'NLS_SORT');
NLS_SORT
BINARY
NLS_COMP
BINARY
SQL>
SQL> SELECT CA...
Is it possible to forward-declare a function in Python?
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in short, if you have if __name__ == '__main__': main() as the last line in your script everything will be just fine!
– Filipe Pina
Aug 3 '11 at 12:24
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