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How do negated patterns work in .gitignore?
I am attempting to use a .gitignore file with negated patterns (lines starting with !), but it's not working the way I expect.
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Define all functions in one .R file, call them from another .R file. How, if possible?
How do I call functions defined in abc.R file in another file, say xyz.R?
1 Answer
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How to set up a PostgreSQL database in Django
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You need to install psycopg2 Python library.
Installation
Download http://initd.org/psycopg/, then install it under Python PATH
After downloading, easily extract the tarball and:
$ python setup.py install
Or if you wish, install ...
Completion block for popViewController
When dismissing a modal view controller using dismissViewController , there is the option to provide a completion block. Is there a similar equivalent for popViewController ?
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What does @hide mean in the Android source code?
For the Activity source code , line 3898 (close to the bottom):
3 Answers
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Find and replace - Add carriage return OR Newline
In the case of following string to be parsed.
5 Answers
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PHP String to Float
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$rootbeer = (float) $InvoicedUnits;
Should do it for you. Check out Type-Juggling. You should also read String conversion to Numbers.
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WPF global exception handler [duplicate]
... WPF application crashes without any message. The application simply close instantly.
9 Answers
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What is “rvalue reference for *this”?
Came across a proposal called "rvalue reference for *this" in clang's C++11 status page .
3 Answers
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How to include external Python code to use in other files?
If you have a collection of methods in a file, is there a way to include those files in another file, but call them without any prefix (i.e. file prefix)?
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