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NGinx Default public www location?
...n educated guess as to what this means for you would be, if you downloaded and compiled the source yourself. In that case, the paths would be relative to whatever --prefix was used. If you didn't change it, it defaults to /usr/local/nginx. You can find the parameters nginx was compiled with via ngin...
Replacing NAs with latest non-NA value
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@BallpointBen 's comment is important and should be included in the answer. Thanks!
– Ben
Mar 6 at 16:43
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Invalid date format specification in gemspec
I am getting the following error when I try to use gems in windows, and I also referred to
this stackoverflow post and updated rubygems and rails. But nothing could solve the problem.
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How can I sort a dictionary by key?
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Standard Python dictionaries are unordered. Even if you sorted the (key,value) pairs, you wouldn't be able to store them in a dict in a way that would preserve the ordering.
The easiest way is to use OrderedDict, which remembe...
ctypes - Beginner
...vanced python users would implement ctypes. Well i'm a beginner in python and need help.
3 Answers
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support FragmentPagerAdapter holds reference to old fragments
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You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarantees that a fragment has been instantiated/add...
Easy way to test a URL for 404 in PHP?
I'm teaching myself some basic scraping and I've found that sometimes the URL's that I feed into my code return 404, which gums up all the rest of my code.
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What do helper and helper_method do?
... This is used for any method that you need to access from both controllers and helpers/views (standard helper methods are not available in controllers). e.g. common use case:
#application_controller.rb
def current_user
@current_user ||= User.find_by_id!(session[:user_id])
end
helper_method :curre...
Ruby equivalent of virtualenv?
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RVM works closer to how virtualenv works since it lets you sandbox different ruby versions and their gems, etc.
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How to use java.String.format in Scala?
...d know how it should display the string. %s is probably the most common, and it just means that the argument should be treated as a string.
I won't list every option, but I'll give a few examples just to give you an idea:
// we can specify the # of decimals we want to show for a floating point:
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