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Should I index a bit field in SQL Server?
...n, SQL's index contains a set of rows for each index value. If you have a range of 1 to 10, then you would have 10 index pointers. Depending on how many rows there are this can be paged differently. If your query looks for the index matching "1" and then where Name contains "Fred" (assuming the N...
symfony 2 twig limit the length of the text and put three dots
...lem when using UTF-8 as the file encoding. This way you don't have to use |raw (as it could cause a security issue).
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
... is_tuple = False
# Copy each item recursively
for x in xrange(len(obj)):
if type(obj[x]) in dignore:
continue
obj[x] = Copy(obj[x], use_deepcopy)
if is_tuple:
# Convert back into a tuple again
obj = tuple(ob...
File I/O in Every Programming Language [closed]
...hon-3-with-2to3.html . Second, in python 3 you can index an iterator. Type range(10)[4] in the shell (range() also returns an iterator in Python 3 in contrary to python 2 where range() returns a list). Note that range(N)[i] is done in O(i), not O(1) and not O(N).
– snakile
...
How to check which version of v8 is installed with my NodeJS?
...*//'`; V=`echo $V | sed -e 's/ /\./g'`; URL=https://github.com/joyent/node/raw/v$V/ChangeLog; curl --silent $URL | grep 'Upgrade v8' | head -1 | sed -e 's/^.* //'; unset V; unset URL
For example, in my box with node.js 0.4.7 I get:
3.1.8.10
:)
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What is the difference between the dot (.) operator and -> in C++? [duplicate]
...
Note that this is only for raw pointers. For class types that overload the operator, it has some other interesting properties...
– David Rodríguez - dribeas
Jul 17 '12 at 18:19
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What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
...peat it here). My favourites, some of which involve other classes (such as ranges):
Date and time stuff - mostly for unit tests. Not sure I'd use them in production :)
var birthday = 19.June(1976);
var workingDay = 7.Hours() + 30.Minutes();
Ranges and stepping - massive thanks to Marc Gravell fo...
Python creating a dictionary of lists
...(list)
>>> a = ['1', '2']
>>> for i in a:
... for j in range(int(i), int(i) + 2):
... d[j].append(i)
...
>>> d
defaultdict(<type 'list'>, {1: ['1'], 2: ['1', '2'], 3: ['2']})
>>> d.items()
[(1, ['1']), (2, ['1', '2']), (3, ['2'])]
...
Insert picture into Excel cell [closed]
...s the ALT key and then move the picture with the mouse. It will
snap and arrange itself with the border of the cell as soon it comes
close to it.
If you have multiple images, you can select and insert all the images at once (as shown in step 4).
You can also resize images by selecting it and dr...
How to avoid reverse engineering of an APK file?
...erver and device.
When storing values on the device, don't store them in a raw format. For example, if you have a game, and you're storing the amount of in game currency the user has in SharedPreferences. Let's assume it's 10000 coins. Instead of saving 10000 directly, save it using an algorithm lik...