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Difference between dispatch_async and dispatch_sync on serial queue?
I've created a serial queue like this:
3 Answers
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Override devise registrations controller
I have added a field to the sign-up form that is based on a different model, see How do I use nested attributes with the devise model for the gory details. This part is working fine.
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Node.js quick file server (static files over HTTP)
Is there Node.js ready-to-use tool (installed with npm ), that would help me expose folder content as file server over HTTP.
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Android SQLite: nullColumnHack parameter in insert/replace methods
The Android SDK has some convenience methods for manipulating data with SQLite. However both the insert and replace methods use some nullColumnHack parameter which usage I don't understand.
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Python: how to print range a-z?
1. Print a-n: a b c d e f g h i j k l m n
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How to set the maxAllowedContentLength to 500MB while running on IIS7?
I changed the maxAllowedContentLength to
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Ruby custom error classes: inheritance of the message attribute
I can't seem to find much information about custom exception classes.
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Executing elements inserted with .innerHTML
I've got a script that inserts some content into an element using innerHTML .
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List comprehension: Returning two (or more) items for each item
Is it possible to return 2 (or more) items for each item in a list comprehension?
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Python: try statement in a single line
Is there a way in python to turn a try/except into a single line?
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