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If a folder does not exist, create it
...tter just unconditionally create the directory, and catch a FileExists (or whatever the C# equivalent) exception in case the function is designed to throw one.
– Jo So
Sep 20 '13 at 15:28
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What is the proper declaration of main?
What is the proper signature of the main function in C++? What is the correct return type, and what does it mean to return a value from main ? What are the allowed parameter types, and what are their meanings?
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What is the difference between packaged_task and async
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Post as a guest
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Typedef function pointer?
I'm learning how to dynamically load DLL's but what I don't understand is this line
6 Answers
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What are the best practices to follow when declaring an array in Javascript?
...mentations, where the spec says that [] calls an internal constructor, not whatever value Array.constructor happens to have at the time.
– Alnitak
Jul 16 '12 at 19:09
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Detect if a NumPy array contains at least one non-numeric value?
...t to NAN, this still takes about 5microseconds, which seems quite slow for what can be done with an array lookup and a test -- should be nanoseconds, no?
– user48956
Oct 4 '17 at 18:14
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append to url and refresh page
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What if your url is: www.mysite.com ...then won't it make the url: www.mysite.com&param=42 which would need the "?" character since its the only parameter in the url. I like @Shlomi Komemi answer as it covers those 2 main...
Timeout on a function call
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How do I call the function or what do I wrap it in so that if it takes longer than 5 seconds the script cancels it?
I posted a gist that solves this question/problem with a decorator and a threading.Timer. Here it is with a breakdown.
Imports and setu...
How do I get the object if it exists, or None if it does not exist?
...odel.objects.get(foo='bar')
except SomeModel.DoesNotExist:
go = None
What I did do, is to subclass models.Manager, create a safe_get like the code above and use that manager for my models. That way you can write: SomeModel.objects.safe_get(foo='bar').
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Quick Way to Implement Dictionary in C
...s which I miss while writing programs in C is a dictionary data structure. What's the most convenient way to implement one in C? I am not looking for performance, but ease of coding it from scratch. I don't want it to be generic either -- something like string->int will do. But I do want it to be ab...