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Why would I want stage before committing in Git?
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No route matches “/users/sign_out” devise rails 3
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For more information, the rationale why this was changed in the latest version of Devise is described here and here.
– Jessie Dedecker
Jul 3 '11 at 8:57
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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...licate question allowed.')
except IntegrityError:
pass
do_more_model_stuff()
In Django 1.4, this works fine. However, in Django 1.5/1.6, each test is wrapped in a transaction, so if an exception occurs, it breaks the transaction until you explicitly roll it back. Therefore, any fu...
public static const in TypeScript
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If you did want something that behaved more like a static constant value in modern browsers (in that it can't be changed by other code), you could add a get only accessor to the Library class (this will only work for ES5+ browsers and NodeJS):
export class Librar...
What is q=0.5 in Accept* HTTP headers?
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What is the difference between the $parse, $interpolate and $compile services?
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Excellent indeed. Here you can find a few more examples of real life usage (and it's a good simple article about speeding up Angular as well): speeding-up-angular-js-with-simple-optimizations "For example, instead of rendering a global navigation using ng-repeat, w...
What is a NullReferenceException, and how do I fix it?
... or shorter if (a != null) { b = a; }.
The rest of this article goes into more detail and shows mistakes that many programmers often make which can lead to a NullReferenceException.
More Specifically
The runtime throwing a NullReferenceException always means the same thing: you are trying to use a ...
Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
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How to convert a number to string and vice versa in C++
...its larger than 9, the alphabet is assumed (a=10 until z=35). You can find more information about the exact formatting that can parsed here for floating-point numbers, signed integers and unsigned integers.
Finally, for each function there is also an overload that accepts a std::wstring as it's fir...
Append value to empty vector in R?
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# yet another way?!?
for (v in values)
vector <- c(vector, v)
# ... more ways
help("append") would have answered your question and saved the time it took you to write this question (but would have caused you to develop bad habits). ;-)
Note that vector <- c() isn't an empty vector; it's...