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When is JavaScript's eval() not evil?
...il", as used by programming language people, usually means "dangerous", or more precisely "able to cause lots of harm with a simple-looking command". So, when is it OK to use something dangerous? When you know what the danger is, and when you're taking the appropriate precautions.
To the point, let...
Undo a merge by pull request?
... be the correct answer. There is a reference in the git-revert man page to more details from the git mailing list here kernel.org/pub/software/scm/git/docs/howto/…
– Justin Hamade
Aug 13 '14 at 17:36
...
What's the point of JAXB 2's ObjectFactory classes?
...
Backward compatibility isn't the only reason. :-P
With more complicated schemas, such as ones that have complicated constraints on the values that an element's contents can take on, sometimes you need to create actual JAXBElement objects. They are not usually trivial to create by...
NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
...n tests on a non-Microsoft build server,
like CruiseControl.NET.
NUnit has more versions coming out
than visual studio. You don't have
to wait years for a new version.
And you don't have to install a new version of the IDE to
get new features.
There are extensions being developed
for NUnit, like row...
Algorithm to compare two images
... version of the other, therefore scaling the resolution down might provide more accurate results.
Consider scanning various prospective areas of the image that could represent zoomed portions of the image and various positions and rotations. It starts getting tricky if one of the images are a skew...
LINQ to SQL Left Outer Join
...hy do you want to convert from SQL to LINQ? SQL works just fine and is far more predictable and efficient...
– Marc Gravell♦
Feb 9 '15 at 8:32
1
...
How to clone all remote branches in Git?
...from the index and created locally for you. The previous line is actually more informative as it tells you that the branch is being set up to track the remote branch, which usually means the origin/branch_name branch
Now, if you look at your local branches, this is what you'll see:
$ git branch
* e...
What is the good python3 equivalent for auto tuple unpacking in lambda?
...st not to say "there is no way out", a third way could be to implement one more level of lambda calling just to unfold the parameters - but that would be at once more inefficient and harder to read than your two suggestions:
min(points, key=lambda p: (lambda x,y: (x*x + y*y))(*p))
update Python 3...
Iterating over every two elements in a list
...a)
for x, y in pairwise(l):
print "%d + %d = %d" % (x, y, x + y)
Or, more generally:
from itertools import izip
def grouped(iterable, n):
"s -> (s0,s1,s2,...sn-1), (sn,sn+1,sn+2,...s2n-1), (s2n,s2n+1,s2n+2,...s3n-1), ..."
return izip(*[iter(iterable)]*n)
for x, y in grouped(l, 2)...
What is the difference between JOIN and UNION?
...
Joins and Unions can be used to combine data from one or more tables. The difference lies in how the data is combined.
In simple terms, joins combine data into new columns. If two tables are joined together, then the data from the first table is shown in one set of column alongs...