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UIView Hide/Show with animation

My simple goal is to fade animate hiding and showing functions. 21 Answers 21 ...
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Too many 'if' statements?

The following code does work how I need it to, but it's ugly, excessive or a number of other things. I've looked at formulas and attempted to write a few solutions, but I end up with a similar amount of statements. ...
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort

sort provides two kinds of numeric sort. This is from the man page: 3 Answers 3 ...
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Checking images for similarity with OpenCV

Does OpenCV support the comparison of two images, returning some value (maybe a percentage) that indicates how similar these images are? E.g. 100% would be returned if the same image was passed twice, 0% would be returned if the images were totally different. ...
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Appropriate datatype for holding percent values?

What is the best datatype for holding percent values ranging from 0.00% to 100.00%? 5 Answers ...
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How do I get time of a Python program's execution?

I have a command line program in Python that takes a while to finish. I want to know the exact time it takes to finish running. ...
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What is the difference between ~> and >= when specifying rubygem in Gemfile?

I often see the following notation(~>) in Gemfile. 2 Answers 2 ...
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How to run a background task in a servlet based web application?

I'm using Java and I want to keep a servlet continuously running in my application, but I'm not getting how to do it. My servlet has a method which gives counts of the user from a database on a daily basis as well as the total count of the users from the whole database. So I want to keep the servlet...
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Pandas every nth row

Dataframe.resample() works only with timeseries data. I cannot find a way of getting every nth row from non-timeseries data. What is the best method? ...
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How to change border color of textarea on :focus

Forgive me is this is a stupid question, but i need help. I want to change border color of TEXTAREA on focus. but my code doesn't seem to working properly. ...