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In Python, how can you load YAML mappings as OrderedDicts?
...ffects. Especially, when writing library code this is a bad idea. Also, it doesn't directly work with yaml.safe_load().
Fortunately, the solution can be improved without much effort:
import yaml
from collections import OrderedDict
def ordered_load(stream, Loader=yaml.Loader, object_pairs_hook=Ord...
Difference between null and empty (“”) Java String
...les don't point to the same objects.
a.equals(b) returns false because "" does not equal null, obviously.
The difference is though that since "" is an actual string, you can still invoke methods or functions on it like
a.length()
a.substring(0, 1)
and so on.
If the String equals null, like b, ...
Handling InterruptedException in Java
...method do? You can figure out the answer by thinking about the following:
Does it make sense for the method you are implementing to throw an InterruptedException? Put differently, is an InterruptedException a sensible outcome when calling your method?
If yes, then throws InterruptedException shou...
What does “Memory allocated at compile time” really mean?
...s suggest people to disassembly their code to see what the compiler really does with the C++ code. This applies from storage classes/duration (like this question) to advanced compiler optimizations. You could instruct your compiler to generate the assembly, but there are wonderful tools to do this o...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...ECT macro is expanded by the compiler, moc is not needed for that. The moc does not do anything with the macro itself, but it generates the definitions of the member variables and methods that the Q_OBJECT macro has declared.
– Unslander Monica
Apr 7 '16 at 20:...
Does PowerShell support constants?
...
Unfortunately this doesn't work when Set-Constant is contained in a module. It will create a constant in the module scope, where Set-Constant is contained. As a workaround one could pass parameter -Surround Global, but that's not always wanted....
Difference between window.location.href, window.location.replace and window.location.assign
... what you have read in those many forums is not correct. The assign method does add a new record to the history.
Reference: http://developer.mozilla.org/en/window.location
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“X does not name a type” error in C++
...complete type
MyMessageBox dataMsgBox;
};
It wouldn't work, since it doesn't know the size yet.
On a side note, this function:
void sendMessage(Message *msg, User *recvr);
Probably shouldn't take either of those by pointer. You can't send a message without a message, nor can you send a ...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...
Company table doesn't have a column with a foreign key to the referenced table - Branch has ref to Company.. why are you saying "the corresponding table has a column with a foreign key to the referenced table" ? Could you explain some more...
How to urlencode a querystring in Python?
...code(f)
eventName=myEvent&eventDescription=cool+event
Note that this does not do url encoding in the commonly used sense (look at the output). For that use urllib.parse.quote_plus.
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