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SQL SELECT speed int vs varchar
I'm in the process of creating a table and it made me wonder.
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Difference between binary semaphore and mutex
Is there any difference between a binary semaphore and mutex or are they essentially the same?
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How to pretty print XML from the command line?
Related: How can I pretty-print JSON in (unix) shell script?
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Cross Browser Flash Detection in Javascript
Does anyone have an example of script that can work reliably well across IE/Firefox to detect if the browser is capable of displaying embedded flash content. I say reliably because I know its not possible 100% of the time.
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HTML in string resource?
I know I can put escaped HTML tags in string resources. However, looking at the source code for the Contacts application I can see that they have a way of not having to encode the HTML. Quote from the Contacts application strings.xml :
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How can you use optional parameters in C#?
Note: This question was asked at a time when C# did not yet support optional parameters (i.e. before C# 4).
23 Answers
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Extract first item of each sublist
I am wondering what is the best way to extract the first item of each sublist in a list of lists and append it to a new list. So if I have:
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Read input from console in Ruby?
I want to write a simple A+B program in ruby, but I have no idea how to work with the console.
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How to keep index when using pandas merge
I would like to merge two DataFrames , and keep the index from the first frame as the index on the merged dataset. However, when I do the merge, the resulting DataFrame has integer index. How can I specify that I want to keep the index from the left data frame?
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How do I create a slug in Django?
I am trying to create a SlugField in Django.
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