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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)
...ift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially.
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Including jars in classpath on commandline (javac or apt)
trying to run this program. I think that to setup all of the web service stuff I need to run apt. (Although using javac I am having the same issue). I think what I am getting is compile errors. (Shown at bottom).
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What does “mro()” do?
In django.utils.functional.py :
4 Answers
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Persistent invalid graphics state error when using ggplot2
I believe my dataframe is okay and my code is okay. In fact, I have eliminated parts of the dataframe and most of the graphing code to make things as basic as possible. But still, I get:
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Enumerable.Empty() equivalent for IQueryable
...od returns IEnumerable<T> and I do not have anything to return, we can use Enumerable.Empty<T>() .
5 Answers...
Can bash show a function's definition?
Is there a way to view a bash function's definition in bash?
4 Answers
4
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How do you tell a specific Delayed::Job to run in console?
For some reason, Delayed::Job's has decided to queue up but not excecute anything even though I've restarted it several times, even kill -9'd it and restarted it. It won't run any jobs.
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Convert dictionary to list collection in C#
I have a problem when trying to convert a dictionary to list.
6 Answers
6
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How do I go straight to template, in Django's urls.py?
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String Concatenation using '+' operator
Looking at the string class metadata, I only see the operators == and != overloaded. So how is it able to perform concatenation for the ' + ' operator?
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