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AES vs Blowfish for file encryption
... (and most other block ciphers of the same era, like 3DES and IDEA) have a 64 bit block size, which is considered insufficient for the large file sizes which are common these days (the larger the file, and the smaller the block size, the higher the probability of a repeated block in the ciphertext -...
EC2 Can't resize volume after increasing size
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Stop the instance
Create a snapshot from the volume
Create a new volume based on the snapshot increasing the size
Check and remember the current's volume mount point (i.e. /dev/sda1)
Detach current volume
Attach the recently created volume to the instance, setting the exact mount point
Restart th...
Getting a list of all subdirectories in the current directory
...xample as a (Windows)Path object.
The first element of os.walk will be the base folder. So you will not get only subdirectories. You can use fu.pop(0) to remove it.
None of the results will use natural sorting. This means results will be sorted like this: 1, 10, 2. To get natural sorting (1, 2, 10),...
Node.js check if path is file or directory
...path alone is a file or directory.
The answer is to identify directory-based paths using "/." like --> "/c/dos/run/." <-- trailing period.
Like a path of a directory or file that has not been written yet. Or a path from a different computer. Or a path where both a file and directory of t...
JSON left out Infinity and NaN; JSON status in ECMAScript?
...SON as defined in ECMA262 5.1 does not even define whether its numbers are based on IEEE754. Since the design flow described for the stringify() function in ECMA262 does mention the three special IEEE values, one can suspect that the intention was in fact to support IEEE754 floating point numbers.
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Remove unwanted parts from strings in a column
....
If you are satisfied with the succinct and readable str
accessor-based solutions above, you can stop here. However, if you are
interested in faster, more performant alternatives, keep reading.
Optimizing: List Comprehensions
In some circumstances, list comprehensions should be favo...
How to get the screen width and height in iOS?
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You might want to base the macro on AnswerBot's answer since that seems like the best answer.
– griotspeak
Aug 8 '13 at 13:17
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Map function in MATLAB?
...rrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure).
However, these functions are oft...
How to use HTML Agility pack
...has a complete reference for each of the objects. This is normally in the base folder of the solution.
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Avoid trailing zeroes in printf()
...ly work out the field widths, then format the number using a format string based on that. The test harness main() shows this in action:
40.00000000000000000000 -> 40.000
359.01335000000000263753 -> 359.013
-359.00999000000001615263 -> -359.010
359.00999999999999090505 -> 359.010
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