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How can you do anything useful without mutable state?
...tand the syntax and underlying principles, then your eyes just glaze over. From your point of view, it looks as if I'm doing the same thing as an imperative language, but just setting up all kinds of boundaries to purposefully make programming more difficult. My point of view, you're just experienci...
how to make twitter bootstrap submenu to open on the left side?
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OP's question and my answer are from august 2012. Meanwhile, Bootstrap is changed, so now you have .pull-left class. Back then, my answer was correct. Now you don't have to manually set css, you have that .pull-left class.
– Miljan Puz...
Is ASCII code 7-bit or 8-bit?
...SCII-compatible means that regardless of context, single bytes with values from 0x00 through 0x7F encode the same characters that they would in ASCII. You don't want to have anything to do with a non-ASCII-compatible text encoding if you can possibly avoid it; naive programs expecting ASCII tend to...
What is the logic behind the “using” keyword in C++?
...lement, too confusing, or would contradict old code.
Here is an old paper from 2003 n1449. The rationale seems to be related to templates. Warning: there may be typos due to copying over from PDF.
First let’s consider a toy example:
template <typename T>
class MyAlloc {/*...*/};
template ...
PHP DOMDocument loadHTML not encoding UTF-8 correctly
... DOM encoding all set to utf8 and still had bad encoding on importing node from one DOC to another. php.net/manual/en/function.mb-convert-encoding.php was the fix.
– Louis Loudog Trottier
Mar 6 '17 at 21:43
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Is it fine to have foreign key as primary key?
...that case the IB registration table could be used to restrict other tables from having further child records. Again, here it could be done with a new PK for the IB registration table also.
– Teddy
Feb 9 '17 at 11:28
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How can I find the number of arguments of a Python function?
...Creating a Signature for the function is easy via the signature function:
from inspect import signature
def someMethod(self, arg1, kwarg1=None):
pass
sig = signature(someMethod)
Now, you can either view its parameters quickly by string it:
str(sig) # returns: '(self, arg1, kwarg1=None)'
...
Standardize data columns in R
...
@weber85, it is a "pipe" operator (from functional programming). Instead of writing f(g(x)) it would look nicer if one writes x %>% g %>% f. In other words, dat %>% mutate_each_(funs(scale),vars=c("y","z")) is just mutate_each_(dat,funs(scale),vars=c(...
Is there any way to put malicious code into a regular expression?
...uby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit patterns that can be solved by DFAs, you can compile them up as such, and they will...
Keep only first n characters in a string?
...cause str.slice() allows you to make the second argument negative to count from the back, unlike str.substring: "abcdef".slice(0, -2) == "abcd".
– Claude
Mar 21 '15 at 20:48
a...