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How to debug .htaccess RewriteRule not working
...u have an idea of when does the .htaccess file load? I though apache would read this first
– macha
Feb 10 '12 at 20:31
...
What are the main performance differences between varchar and nvarchar SQL Server data types?
...ce is not the issue... but memory and performance will be.
Double the page reads, double index size, strange LIKE and = constant behaviour etc
Do you need to store Chinese etc script? Yes or no...
And from MS BOL "Storage and Performance Effects of Unicode"
Edit:
Recent SO question highlighting...
How do 20 questions AI algorithms work?
...
I recommend reading about the game here: http://en.wikipedia.org/wiki/Twenty_Questions
In particular the Computers section:
The game suggests that the information
(as measured by Shannon's entropy
statistic) required to identif...
pandas DataFrame: replace nan values with average of columns
...
# To read data from csv file
Dataset = pd.read_csv('Data.csv')
X = Dataset.iloc[:, :-1].values
# To calculate mean use imputer class
from sklearn.impute import SimpleImputer
imputer = SimpleImputer(missing_values=np.nan, strateg...
Can you have multiple $(document).ready(function(){ … }); sections?
... neatest thing to do. Try not to overuse them, as it will seriously affect readability. Other than that , it's perfectly legal. See the below:
http://www.learningjquery.com/2006/09/multiple-document-ready
Try this out:
$(document).ready(function() {
alert('Hello Tom!');
});
$(document).ready...
Do login forms need tokens against CSRF attacks?
...videos the victim was watching.
There's some discussion in this comment thread that implies it could "only" be used for privacy violations like that. Perhaps, but to quote the section in Wikipedia's CSRF article:
Login CSRF makes various novel attacks possible; for instance, an
attacker can l...
How to find keys of a hash?
...
# OUTPUT
# > a 1
# > b 2
# > ["a", "b"]
However, since ECMA5 already added Object.keys you might as well use:
Object.defineProperty(Object.prototype, 'keys', {
value: function keys() {
return Object.keys(this);
},
enumerable: false
});
Original answer
Object.prototype.keys ...
Is a DIV inside a TD a bad idea?
It seems like I heard/read somewhere that a <div> inside of a <td> was a no-no. Not that it won't work, just something about them not being really compatible based on their display type. Can't find any evidence to back up my hunch, so I may be totally wrong.
...
Iterate keys in a C++ map
...form_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You then have a sporting chance of figuring out what on earth the rest of it is talking about :-)]
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When does invoking a member function on a null instance result in undefined behavior?
...tanding, if p were a hardware address which would trigger some action when read, but were not declared volatile, the statement *p; would not be required, but would be allowed, to actually read that address; the statement &(*p);, however, would be forbidden from doing so. If *p were volatile, th...