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What exactly do “u” and “r” string flags do, and what are raw string literals?
...d escape sequence (e.g. r"\").
"Raw" is not part of the type, it's merely one way to represent the value. For example, "\\n" and r"\n" are identical values, just like 32, 0x20, and 0b100000 are identical.
You can have unicode raw string literals:
>>> u = ur"\n"
>>> print type(u...
Can you target with css?
...ing CSS:
[T]his leads to a somewhat odd status
for BR in that on the one hand it is
not being treated as a normal element,
but instead as an instance of \A in
generated content, but on the other
hand it is being treated as a normal
element in that (a limited subset of)
CSS properti...
Find nearest value in numpy array
...
Actually, that still only works for one dimension, since argmin() gives multiple results per column / dimension. Also I had a typo. This works, at least for 2 dimensions: a[np.sum(np.square(np.abs(a-a0)),1).argmin()].
– Max Shron
...
How to specify font attributes for all elements on an html web page?
... Agree, but it applies the CSS to ALL elements, as BugAlert asked for. If one wants to effect ALL elements, one can expect the performance to reduce a little. :)
– Bazzz
Oct 22 '10 at 14:05
...
Redirecting EC2 Elastic Load Balancer from HTTP to HTTPS
.../edit rules" on your HTTP listener
Delete all rules except for the default one (bottom)
Edit default rule: choose "Redirect to" as an action, leave everything as default and enter "443" as a port.
The same can be achieved by using the CLI as described here.
It is also possible to do this in Clo...
How do I use valgrind to find memory leaks?
...ory and forget to assign the pointer.
Don't overwrite a pointer with a new one unless the old memory is freed.
General advice for memory errors:
Access and write to addresses and indices you're sure belong to you. Memory
errors are different from leaks; they're often just IndexOutOfBoundsExcepti...
Why use multiple columns as primary keys (composite primary key)
...
Your understanding is correct.
You would do this in many cases. One example is in a relationship like OrderHeader and OrderDetail. The PK in OrderHeader might be OrderNumber. The PK in OrderDetail might be OrderNumber AND LineNumber. If it was either of those two, it would not be unique...
Was PreferenceFragment intentionally excluded from the compatibility package?
...rection is to use PreferenceFragment on Android 3.0 and higher.
Can anyone tell me whether this was intentional?
My guess is it's a question of engineering time, but that's just a guess.
If so, can I easily target a range of devices (i.e. < 3.0 and >=3.0) or will I have to jump thr...
Can unit testing be successfully added into an existing production project? If so, how and is it wor
...lity and defect rate - plus improved morale and profitability.
It can be done when you have both an accurate understanding and commitment from the parties involved.
First of all, it is important to understand that unit testing is a skill in itself. You can be a very productive programmer by "conve...
How to parse a query string into a NameValueCollection in .NET
...hy to install 100 M of additional libraries on client computer to just use one simple method? However, it looks like Microsoft doesn't have any better idea. The only way is to implement own method or use open source implementation.
– Vitalii
Jun 1 '12 at 12:05
...