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Browsers' default CSS for HTML elements
...dor default CSS stylesheets can be found here
1. Default Styles for Firefom>x m>
2. Default Styles for Internet Em>x m>plorer
3. Default Styles for Chrome / Webkit
4. Default Styles for Opera
5. Default Styles for HTML4 (W3C spec)
6. Default Styles for HTML5 (W3C spec)
Sample, per the default W3C HTML4...
Is there shorthand for returning a default value if None in Python? [duplicate]
In C#, I can say m>x m> ?? "" , which will give me m>x m> if m>x m> is not null, and the empty string if m>x m> is null. I've found it useful for working with databases.
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Split a vector into chunks in R
...[53] 4 5 4 5 5 8 7 7 7 6 2 4 3 3 8 11 6 6 1 8 4
> mam>x m> <- 20
> m>x m> <- seq_along(d)
> d1 <- split(d, ceiling(m>x m>/mam>x m>))
> d1
$`1`
[1] 3 1 11 4 1 2 3 2 4 10 10 2 7 4 6 6 2 1 1 2
$`2`
[1] 3 8 3 10 7 4 3 4 4 1 1 7 2 4 6 0 5 7 4 6
...
When would anyone use a union? Is it a remnant from the C-only days?
I have learned but don't really get unions. Every C or C++ tem>x m>t I go through introduces them (sometimes in passing), but they tend to give very few practical em>x m>amples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
Sorting list based on values from another list?
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Shortest Code
[m>x m> for _,m>x m> in sorted(zip(Y,m>X m>))]
Em>x m>ample:
m>X m> = ["a", "b", "c", "d", "e", "f", "g", "h", "i"]
Y = [ 0, 1, 1, 0, 1, 2, 2, 0, 1]
Z = [m>x m> for _,m>x m> in sorted(zip(Y,m>X m>))]
print(Z) # ["a", "d", "h", "b", "c", "e", "i...
How to convert a std::string to const char* or char*?
...finished using it
delete[] writable;
Edit: Notice that the above is not em>x m>ception safe. If anything between the new call and the delete call throws, you will leak memory, as nothing will call delete for you automatically. There are two immediate ways to solve this.
boost::scoped_array
boost::sco...
How do I compute derivative using Numpy?
How do I calculate the derivative of a function, for em>x m>ample
8 Answers
8
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What does (m>x m> ^ 0m>x m>1) != 0 mean?
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The m>X m>OR operation (m>x m> ^ 0m>x m>1) inverts bit 0. So the em>x m>pression effectively means: if bit 0 of m>x m> is 0, or any other bit of m>x m> is 1, then the em>x m>pression is true.
Conversely the em>x m>pression is false if m>x m> == 1.
So the test is the same ...
How to edit log message already committed in Subversion?
... message before it is
changed, so it can preserve it in some
way (for em>x m>ample, by sending an
email). Once revision property
modifications are enabled, you can
change a revision's log message by
passing the --revprop switch to svn
propedit or svn propset, like either
one of these:
$s...
Generic type parameter naming convention for Java (with multiple chars)?
...name.
The most commonly used type parameter names are:
E - Element (used em>x m>tensively by the Java Collections Framework)
K - Key
N - Number
T - Type
V - Value
S,U,V etc. - 2nd, 3rd, 4th types
You'll see these names used throughout the Java SE API and the rest of this lesson.
I'd stick to it to avo...