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Finding the index of elements based on a condition using python list comprehension
...ross a need for this in a script/function/class. It's more for interactive testing of a class I am writing.
– Lee
Sep 1 '11 at 13:30
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Source code highlighting in LaTeX
...
This can be typeset using the following command:
xelatex -shell-escape test.tex
(But minted also works with latex and pdflatex …)
minted.sty works similar to texments.sty but allows additional features.
How to get it
minted is listed on CTAN (package info)
documentation is of course incl...
How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...pdate(text);
hash = hmac.digest('hex');
console.log("Method 2: ", hash);
Tested on node v6.2.2 and v7.7.2
See https://nodejs.org/api/crypto.html#crypto_class_hmac. Gives more examples for using the streaming approach.
sha...
C# DLL config file
...r about two days, and didn't get it to work until just now. As debugging a test the ConfigurationManager was reading from the machine.config -I think-, since the connection strings pulled out were about SQLExpress -connection string I didn't have listed-.
– yopez83
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How can I access my localhost from my Android device?
... mobile.
ADB Reverse Socket (Android only)
This solution works for me (tested with a MacBook):
Connect Android mobile device with USB cable to laptop
Enable USB Debugging on mobile device
On laptop, run adb reverse tcp:4000 tcp:4000
Use your custom port number instead of 4000
Now, on the mo...
Finding three elements in an array whose sum is closest to a given number
...A, but now you don't need the target value anymore.
Clearly, if we simply test all possible 3-tuples, we'd solve the problem in O(n3) -- that's the brute-force baseline. Is it possible to do better? What if we pick the tuples in a somewhat smarter way?
First, we invest some time to sort the array,...
Single script to run in both Windows batch and Linux Bash?
...he script from the default shell on either Windows or unix will work (only tested with bash). Because I cannot think of a way to include a shebang without making cmd complain loudly, you must always invoke the script via shell. I.e., be sure to use execlp() or execvp() (I think system() does this th...
Using AES encryption in C#
...st requires the following:
string encrypted = Cryptography.Encrypt(data, "testpass");
string decrypted = Cryptography.Decrypt(encrypted, "testpass");
By default, the implementation uses AesManaged - but you could actually also insert any other SymmetricAlgorithm. A list of the available Symmetric...
iOS app error - Can't add self as subview
... you do another push or pop before the animation completes. You can easily test whether this is indeed the case by temporarily changing your Push and Pop operations to Animated:NO (so that they complete synchronously) and seeing if that eliminates the crash.
If this is indeed your problem and you wi...
Is it good style to explicitly return in Ruby?
...did - and it failed. Fortunately at least it showed up in some functional tests.
– Tim Holt
Nov 30 '12 at 20:01
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