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How to use hex color values
I am trying to use hex color values in Swift, instead of the few standard ones that UIColor allows you to use, but I have no idea how to do it.
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Byte order mark screws up file reading in Java
...icode
* BOMs.
*/
public static final class BOM
{
/**
* NONE.
*/
public static final BOM NONE = new BOM(new byte[]{},"NONE");
/**
* UTF-8 BOM (EF BB BF).
*/
public static final BOM UTF_8 = new BOM(new byte[]{(byte)0xEF,
...
What does [:] mean?
...ut NumPy arrays here. Rather than using A[deque(chain((k,), repeat(slice(None), len(A.shape) - 1)).rotate(axis)], I'd almost always prefer numpy.rollaxis(A, axis, 0)[k]. In general, I've rarely come across a use case where you would need to directly create slice() objects. If you need them anyway...
Method call if not null in C#
...nvoke" problem.
===
Prior to C# 6, no: there is no null-safe magic, with one exception; extension methods - for example:
public static void SafeInvoke(this Action action) {
if(action != null) action();
}
now this is valid:
Action act = null;
act.SafeInvoke(); // does nothing
act = delegate...
What is the perfect counterpart in Python for “while not EOF”
....stdin:
do_something()
To complete the picture, binary reads can be done with:
from functools import partial
with open('somefile', 'rb') as openfileobject:
for chunk in iter(partial(openfileobject.read, 1024), b''):
do_something()
where chunk will contain up to 1024 bytes at a ...
Partial classes in separate dlls
...
While other answers do provide the unpleasant "No" that anyone landing on this page didn't want to see or hear, I was struck by another thought that hasn't been mentioned here yet. If partial classes were allowed across assemblies, one would get access to private members of existing ...
Escape regex special characters in a Python string
...
I'm surprised no one has mentioned using regular expressions via re.sub():
import re
print re.sub(r'([\"])', r'\\\1', 'it\'s "this"') # it's \"this\"
print re.sub(r"([\'])", r'\\\1', 'it\'s "this"') # it\'s "this"
print re.sub(r'([\"...
_DEBUG vs NDEBUG
...
I rely on NDEBUG, because it's the only one whose behavior is standardized across compilers and implementations (see documentation for the standard assert macro). The negative logic is a small readability speedbump, but it's a common idiom you can quickly adapt to...
Change the image source on rollover using jQuery
...single image.jpg and play with background-position to show / hide the good one.
– kheraud
Sep 7 '11 at 10:46
2
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Changing selection in a select with the Chosen plugin
... You don't event need to trigger any events. Perhaps, it is of use for someone else too... :)
– Timo
Mar 26 '14 at 11:04
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