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How unique is UUID?
...(I'm using it for files uploaded to the server)? As I understand it, it is based off random numbers. However, it seems to me that given enough time, it would eventually repeat it self, just by pure chance. Is there a better system or a pattern of some type to alleviate this issue?
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Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?
...ata in a file: One is a "binary" X.509 encoding, and the other is a "text" base64 encoding that usually starts with "-----BEGIN CERTIFICATE-----". These encode the same data but in different ways. Most systems accept both formats, but, if you need to, you can convert one to the other via openssl or ...
Multiline syntax for piping a heredoc; is this portable?
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Hi, check this, for example
#!/bin/sh
( base32 -d | base64 -d )<<ENDOFTEXT
KNDWW42DNNSHS5ZXPJCG4MSVM5MVQVT2JFCTK3DELBFDCY2IIJYGE2JUJNHWS22LINVHQMCMNVFD
CWJQIIZVUV2JOVNEOVJLINTW6PIK
ENDOFTEXT
regards
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
...ht side in the illustration below:
git diff foo...bar
git diff $(git merge-base foo bar) bar # same thing as above
In other words, git diff foo..bar is exactly the same as git diff foo bar; both will show you the difference between the tips of the two branches foo and bar. On the other hand, git...
NodeJS: How to decode base64 encoded string back to binary? [duplicate]
...ord hashing with salt, so I generated salt as binary, hashed the password, base64 encoded the password and salt then stored them into database.
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Difference between Destroy and Delete
... API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance.
The row is simply removed with an SQL DELETE statement on the record's primary key, a...
Capture Signature using HTML5 and iPad
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Here's another canvas based version with variable width (based on drawing velocity) curves: demo at http://szimek.github.io/signature_pad and code at https://github.com/szimek/signature_pad.
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When should I use genetic algorithms as opposed to neural networks? [closed]
...d by changing a number of weights between them, attempt to predict outputs based on inputs.
They are two fundamentally different entities, but sometimes the problems they are capable of solving overlap.
share
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ActiveRecord: size vs count
...ve built but haven't saved, .count will report only the count from the database.
– Shawn J. Goff
Sep 6 '13 at 18:54
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Are (non-void) self-closing tags valid in HTML5?
...th most of the inconveniences of XML), while it makes it harder to use XML-based tools (e.g. template tools or various processors). Even from a generation point of view, it would seem that <object data="..." /> and <img src="..."></src> are not OK, while <object data="...">&l...