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Understanding Python super() with __init__() methods [duplicate]
...s of fun stuff can happen. See the standard docs on super if you haven't already.
Note that the syntax changed in Python 3.0: you can just say super().__init__() instead of super(ChildB, self).__init__() which IMO is quite a bit nicer. The standard docs also refer to a guide to using super() which ...
Embedding unmanaged dll into a managed C# dll
...;
byte[] buf = new byte[sz];
while (true)
{
int nRead = stm.Read(buf, 0, sz);
if (nRead < 1)
break;
outFile.Write(buf, 0, nRead);
}
}
}
catch
{
// This may happen if another process has already created and loaded the file.
...
How to determine if a number is a prime with regex?
...
The comment below gives better explanation. Please read it before you move on!
– Ivan Davidov
Sep 26 '15 at 21:54
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How to select the row with the maximum value in each group
...ve the data available both inside and outside the group data.frame. If you read the data in with read.table or something, you would need to use with because those column names would not be available outside the data.frame.
– MrFlick
Jul 4 '14 at 15:56
...
How to modify a specified commit?
... @ is shorthand for HEAD, and ~ is the commit before the specified commit.
Read more about rewriting history in the Git docs.
Don't be afraid to rebase
ProTip™: Don't be afraid to experiment with "dangerous" commands that rewrite history* — Git doesn't delete your commits for 90 days by defa...
Rails: How can I set default values in ActiveRecord?
...efining defaults in your migration also works part of the time... As has already been mentioned this will not work when you just call Model.new.
Overriding initialize can work, but don't forget to call super!
Using a plugin like phusion's is getting a bit ridiculous. This is ruby, do we really need ...
Why can't C++ be parsed with a LR(1) parser?
I was reading about parsers and parser generators and found this statement in wikipedia's LR parsing -page:
6 Answers
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When to use the different log levels
...servers must serve requests in a finite amount of time, or exist in multithreaded and/or server environments that might be difficult to instrument, or the bug might be rare enough that a debugger isn't an option. Or you don't know what you're looking for.
– Thanatos
...
Check if an apt-get package is installed and then install it if it's not on Linux
...hello package the second dpkg after apt remove shows that he package has already been removed without --purge:
dpkg-query: package 'hello' is not installed and no information is available
The documentations are also very unclear, e.g.:
sudo apt dselect-upgrade
did not remove certbot when it wa...
How to create a trie in Python
...'m interested in tries and DAWGs (direct acyclic word graph) and I've been reading a lot about them but I don't understand what should the output trie or DAWG file look like.
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