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Getting the index of the returned max or min item using max()/min() on a list
...mgetter() presented in the other answers, and use instead
index_min = min(range(len(values)), key=values.__getitem__)
because it doesn't require to import operator nor to use enumerate, and it is always faster(benchmark below) than a solution using itemgetter().
If you are dealing with numpy arr...
if/else in a list comprehension
...ative example:
>>> print(", ".join(["ha" if i else "Ha" for i in range(3)]) + "!")
Ha, ha, ha!
It exploits the fact that if i evaluates to False for 0 and to True for all other values generated by the function range(). Therefore the list comprehension evaluates as follows:
>>> ...
How to serve an image using nodejs
...f someone doesn't want to rely on anyone to get the job done then at least raw TCP sockets should be used instead - which I do in one of my examples below.
A more serious problem is that all of the answers here that use the http module are broken. They introduce race conditions, insecure path resol...
git: Apply changes introduced by commit in one repo to another repo
... repository.
With modern Git you can use multiple revisions and revision ranges with cherry-pick.
The $(git --git-dir=../repo/.git rev-parse --verify <commit>)
is here to translate <commit> (for example HEAD, or v0.2, or master~2, which are values in the second repository you copy fro...
What does the keyword Set actually do in VBA?
...analogy. Take this example (VBA on the left | C on the right): Dim A, B As Range | Range A, B;. Going with your analogy, A = B | A = B; would be correct (and it would be in C), but Set A = B | A = &B; is actually correct in VBA (and it would fail in C). In VBA, A = B and Set A = B are BOTH equi...
How does zip(*[iter(s)]*n) work in Python?
...e = 3
L = [1,2,3,4,5,6,7,8,9]
# iterate over L in steps of 3
for start in range(0,len(L),chunk_size): # xrange() in 2.x; range() in 3.x
end = start + chunk_size
print L[start:end] # three-item chunks
Following the values of start and end:
[0:3) #[1,2,3]
[3:6) #[4,5,6]
[6:9) #[7,8,9]
...
How to add extra info to copied web text
...ection + pagelink,
newdiv = document.createElement('div');
var range = selection.getRangeAt(0); // edited according to @Vokiel's comment
//hide the newly created container
newdiv.style.position = 'absolute';
newdiv.style.left = '-99999px';
//insert the container, fill i...
How do I remove an item from a stl vector with a certain value?
...repeat the vector name 4 times) would be to use Boost:
#include <boost/range/algorithm_ext/erase.hpp>
// ...
boost::remove_erase(vec, int_to_remove);
See http://www.boost.org/doc/libs/1_64_0/libs/range/doc/html/range/reference/algorithms/new/remove_erase.html
...
Random number generation in C++11: how to generate, how does it work? [closed]
...(think of this as the classic rand()). Now you want a random number in the range 0, 1, 2, each with equal probability. Your knee-jerk reaction would be to take rand() % 3. But wait, the remainders 0 and 1 occur more often than the remainder 2, so this isn't correct!
This is why we need proper distr...
Is the creation of Java class files deterministic?
... a class file format of
version v if and only if v lies in some contiguous range Mi.0 v
Mj.m. Only Sun can specify what range of versions a Java virtual
machine implementation conforming to a certain release level of the
Java platform may support.1
Reading more through the footnotes
1 The Java vi...