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What does `m_` variable prefix mean?
... need to see where they're defined to know their scope. This is also great if you already know the scope and you're using something like intelliSense, you can start with m_ and a list of all your member variables are shown. Part of Hungarian notation, see the part about scope in the examples here.
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how to get the current working directory's absolute path from irb
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
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Allowed characters in filename [closed]
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To be more precise about Mac OS X (now called MacOS) / in the Finder is interpreted to : in the Unix file system.
This was done for backward compatibility when Apple moved from Classic Mac OS.
It is legitimate to use a / in a file name in the Finder, looki...
Functional programming - is immutability expensive? [closed]
...ing, let’s consider this reference implementation in Haskell (I don’t know Scala …) from the Haskell introduction:
qsort [] = []
qsort (x:xs) = qsort lesser ++ [x] ++ qsort greater
where lesser = (filter (< x) xs)
greater = (filter (>= x) xs)
The first disadvantage...
Rails 3 - can't install pg gem
...pplications/Postgres.app/Contents/MacOS/bin:$PATH"
gem install pg should now work. (This is what worked for me.)
Note New versions path looks like:
/Applications/Postgres.app/Contents/Versions/<version>/bin
share
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Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
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Ant is in homebrew-core now. Simply use brew install ant
– meaku
Oct 29 '13 at 12:31
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What is the most pythonic way to check if an object is a number?
...True
'2' False
This is, of course, contrary to duck typing. If you are more concerned about how an object acts rather than what it is, perform your operations as if you have a number and use exceptions to tell you otherwise.
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Is it possible to import a whole directory in sass using @import?
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If you are using Sass in a Rails project, the sass-rails gem, https://github.com/rails/sass-rails, features glob importing.
@import "foo/*" // import all the files in the foo folder
@import "bar/**/*" // import all the...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...dards documents to be sure. For example, ISO C11 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall be the null character if the program name is not available from the host environment.
So no, it's onl...
How to write to a file, using the logging Python module?
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Can the filename be a hdfs location? If yes, how?
– Augmented Jacob
Sep 25 '17 at 20:59
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