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edited Jun 4 '15 at 22:51
Chiramisu
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Scala 2.8 breakOut
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The answer is found on the definition of map:
def map[B, That](f : (A) => B)(implicit bf : CanBuildFrom[Repr, B, That]) : That
Note that it has two parameters. The first is your function and the second is an implicit. If you do not provide that impli...
How to darken a background using CSS?
I have an element with text in it. Whenever I decrease the opacity, then I decrease the opacity of the WHOLE body. Is there any way I can just make the background-image darker, and not everything else?
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How to wait for several Futures?
Suppose I have several futures and need to wait until either any of them fails or all of them succeed.
8 Answers
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Encrypt & Decrypt using PyCrypto AES 256
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Here is my implementation and works for me with some fixes and enhances the alignment of the key and secret phrase with 32 bytes and iv to 16 bytes:
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
class AESCipher(object):
def...
Detect network connection type on Android
...emands you have to handle all the network types returned by getSubType().
It took me an hour or two to research and write this class to do just exactly that, and I thought I would share it with others that might find it useful.
Here is a Gist of the class, so you can fork it and edited it.
packag...
What is the most efficient string concatenation method in python?
...ou may be interested in this: An optimization anecdote by Guido. Although it is worth remembering also that this is an old article and it predates the existence of things like ''.join (although I guess string.joinfields is more-or-less the same)
On the strength of that, the array module may be fas...
How can I color Python logging output?
Some time ago, I saw a Mono application with colored output, presumably because of its log system (because all the messages were standardized).
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CMake: Print out all accessible variables in a script
...n optionally use a regular expression to print only a subset of variables with matching names
function(dump_cmake_variables)
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName ${_variableNames})
if (ARGV0)
unset(MATCHED)
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Where do “pure virtual function call” crashes come from?
I sometimes notice programs that crash on my computer with the error: "pure virtual function call".
8 Answers
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