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How to convert Set to String[]?
I need to get a String[] out of a Set<String> , but I don't know how to do it. The following fails:
7 Answers
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Is the pImpl idiom really used in practice?
...Like above, it's pure overhead and is related with how real-life C++ build systems work.
Of course, recompilation is not needed when you just modify the implementation of the methods (because you don't touch the header), but that's on par with the standard header/implementation technique.
Is ...
Converting a JS object to an array using jQuery
My application creates a JavaScript object, like the following:
18 Answers
18
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Convert JavaScript string in dot notation into an object reference
...wer has gotten many upvotes, I am also somewhat horrified. If one needs to convert dot-notation strings like "x.a.b.c" into references, it could (maybe) be a sign that there is something very wrong going on (unless maybe you're performing some strange deserialization).
That is to say, novices w...
Correct way to try/except using Python requests module?
...ophic and you can't go on, then yes, you may abort your program by raising SystemExit (a nice way to both print an error and call sys.exit).
You can either catch the base-class exception, which will handle all cases:
try:
r = requests.get(url, params={'s': thing})
except requests.exceptions.Requ...
Is there any way to kill a Thread?
...ythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid), None)
raise SystemError("PyThreadState_SetAsyncExc failed")
class ThreadWithExc(threading.Thread):
'''A thread class that supports raising exception in the thread from
another thread.
'''
def _get_my_tid(self):
...
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
I have a feeling there is a simple/built-in way to do this but I can't find it.
13 Answers
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Converting an integer to a hexadecimal string in Ruby
Is there a built in way to convert an integer in Ruby into its hexadecimal equivalent?
5 Answers
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Function to calculate distance between two coordinates
...t(a), Math.sqrt(1-a));
var d = R * c;
return d;
}
// Converts numeric degrees to radians
function toRad(Value)
{
return Value * Math.PI / 180;
}
share
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i...
Why doesn't django's model.save() call full_clean()?
... As of Django 2.2.3, this causes an issue with the basic authentication system. You will get a ValidationError: Session with this Session key already exists. To avoid this, you need to add an if-statement for sender in list_of_model_classes to prevent the signal from overriding Django's default a...