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Generating Guids in Ruby
...gest("some-random-string")[8..16]
=> "2ebe5597f"
>> SecureRandom.base64(8).gsub("/","_").gsub(/=+$/,"")
=> "AEWQyovNFo0"
>> rand(36**8).to_s(36)
=> "uur0cj2h"
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What is the exact meaning of Git Bash?
...2015), you now have Git for Windows 2.3.5.
It has a much more recent bash, based on the 64bits msys2 project, an independent rewrite of MSYS, based on modern Cygwin (POSIX compatibility layer) and MinGW-w64 with the aim of better interoperability with native Windows software. msys2 comes with its ow...
How can I link to a specific glibc version?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Why is there no xrange function in Python3?
...emoved?? Think about it this way - if you had a performance-dependant app based on multiprocessing knowing how much queue you need to consume a-time, would 30% make a difference or not? You see, you say it doesn't matter, but every time i use range i hear that huge distressing fan sound meaning cpu...
What is the most efficient way to loop through dataframes with pandas? [duplicate]
...
Pandas is based on NumPy arrays.
The key to speed with NumPy arrays is to perform your operations on the whole array at once, never row-by-row or item-by-item.
For example, if close is a 1-d array, and you want the day-over-day percen...
Eclipse returns error message “Java was started but returned exit code = 1”
...erver_10.3
So a 32-bit Java for a 32-bit Eclipse, but still exit code 1. Based on all answers I had seen here, and the only change being a new laptop with Windows 10, the only possible explanation was that the new OS and the Eclipse were disagreeing on something. So I started playing around with e...
How to prevent favicon.ico requests?
...sers. I tested Safari, Chrome and Firefox:
<link rel="icon" href="data:;base64,=">
I left out the "shortcut" name from the "rel" attribute value since that's only for older IE and versions of IE < 8 doesn't like dataURIs either. Not tested on IE8.
UPDATE 2:
If you need your document to val...
What are allowed characters in cookies?
...page is used (locale-specific and never UTF-8);
Firefox (and other Mozilla-based browsers) use the low byte of each UTF-16 code point on its own (so ISO-8859-1 is OK but anything else is mangled);
Safari simply refuses to send any cookie containing non-ASCII characters.
so in practice you cannot u...
Two-way encryption: I need to store passwords that can be retrieved
...json).
After you have successfully encrypted using mcrypt, run it through base64_encode and then convert it to hex code. Once in hex code it's easy to transfer in a variety of ways.
$td = mcrypt_module_open('tripledes', '', 'ecb', '');
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RA...
JavaScript/jQuery to download file via POST with JSON data
I have a jquery-based single-page webapp. It communicates with a RESTful web service via AJAX calls.
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