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Cast Int to enum in Java
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edited Oct 21 '16 at 13:57
Andrew Tobilko
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Django. Override save for model
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super(Model, self).save(*args, **kwargs)
Not sure if it would play nice with all pseudo-auto django tools (Example: ModelForm, contrib.admin etc).
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AttributeError: 'module' object has no attribute 'urlopen'
I'm trying to use Python to download the HTML source code of a website but I'm receiving this error.
12 Answers
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Why does C++11 not support designated initializer lists as C99? [closed]
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C++ has constructors. If it makes sense to initialize just one member then that can be expressed in the program by implementing an appropriate constructor. This is the sort of abstraction C++ promotes.
On the other hand the designated initializers f...
Installing Python 3 on RHEL
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It is easy to install it manually:
Download (there may be newer releases on Python.org):
$ wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tar.xz
Unzip
$ tar xf Python-3.*
$ cd Python-3.*
Prepare compilation...
How to remove array element in mongodb?
... id },
{ $pull: { 'contact.phone': { number: '+1786543589455' } } }
);
It will find document with the given _id and remove the phone +1786543589455 from its contact.phone array.
You can use $unset to unset the value in the array (set it to null), but not to remove it completely.
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How to optimize for-comprehensions and loops in Scala?
So Scala is supposed to be as fast as Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
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What are allowed characters in cookies?
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this one's a quickie:
You might think it should be, but really it's not at all!
What are the allowed characters in both cookie name and value?
According to the ancient Netscape cookie_spec the entire NAME=VALUE string is:
a sequence of characters exclud...
Hidden features of Perl?
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The flip-flop operator is useful for skipping the first iteration when looping through the records (usually lines) returned by a file handle, without using a flag variable:
while(<$fh>)
{
next if 1..1; # skip first record
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}
Run perldoc perlop and search for "flip-...
How to disable Golang unused import error
...o know if there exists some hope to change to this behavior, e.g. reducing it to warning.
8 Answers
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