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How do you remove an invalid remote branch reference from Git?
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11 Answers
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std::function vs template
Thanks to C++11 we received the std::function family of functor wrappers. Unfortunately, I keep hearing only bad things about these new additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates.
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how to append a list object to another
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194
If you want to append copies of items in B, you can do:
a.insert(a.end(), b.begin(), b.end())...
How to get the focused element with jQuery?
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edited Sep 21 '13 at 18:18
answered Jun 30 '12 at 21:57
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Redirect to named url pattern directly from urls.py in django?
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198
If you are on Django 1.4 or 1.5, you can do this:
from django.core.urlresolvers import revers...
How can I create directory tree in C++/Linux?
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17 Answers
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Changes in import statement python3
...n(degrees(x))
Note that it already triggers a warning in Python 2:
a.py:1: SyntaxWarning: import * only allowed at module level
def sin_degrees(x):
In modern Python 2 code you should and in Python 3 you have to do either:
def sin_degrees(x):
from math import sin, degrees
return sin(d...
Why can't I use an alias in a DELETE statement?
In SQL Server Compact Edition in Visual Studio 2010 (maybe SQL Server and SQL in general, I don't know), this command works:
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
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189
See https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page f...
How to Flatten a Multidimensional Array?
...an use the Standard PHP Library (SPL) to "hide" the recursion.
$a = array(1,2,array(3,4, array(5,6,7), 8), 9);
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($a));
foreach($it as $v) {
echo $v, " ";
}
prints
1 2 3 4 5 6 7 8 9
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