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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
... database extends the previous model and values are stored in a structured format (a document, hence the name) that the database can understand. For example, a document could be a blog post and the comments and the tags stored in a denormalized way. Since the data are transparent, the store can do m...
Android: What's the difference between Activity.runOnUiThread and View.post?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
Is the 'override' keyword just a check for a overridden virtual method?
...f different, but related type. Read about covariant and contravariant transformations if interested.
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What is the X-REQUEST-ID http header?
... is generated (randomly) by the client it does not contain any sensitive information, and should thus not violate the user's privacy. As a unique ID is created per request it does also not help with tracking users.
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When are you truly forced to use UUID as part of the design?
...ID generator/parser for Ruby, so I consider myself to be reasonably well-informed on the subject. There are four major UUID versions:
Version 4 UUIDs are essentially just 16 bytes of randomness pulled from a cryptographically secure random number generator, with some bit-twiddling to identify the U...
Disable a Maven plugin defined in a parent POM
...Also look out for plugins versus pluginManagement. The later overrides the former.
– bmargulies
Oct 19 '11 at 12:55
I ...
How can I use a local image as the base image with a dockerfile?
... in my other Dockerfile, and this works just fine. (Apologies for the poor formatting)
– Pejvan
Apr 21 '15 at 12:16
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PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI
...le 1.
PHP_SELF is different from SCRIPT_NAME only when requested url is in form:
http://example.com/test.php/foo/bar
[PHP_SELF] => /test.php/foo/bar
[SCRIPT_NAME] => /test.php
(this seems to be the only case when PATH_INFO contains sensible information [PATH_INFO] => /foo/bar)
Note: this...
Why use argparse rather than optparse?
...d /
handling zero-or-more and one-or-more style arguments
producing more informative usage messages
providing a much simpler interface for custom types and actions
More information is also in PEP 389, which is the vehicle by which argparse made it into the standard library.
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Why are unsigned int's not CLS compliant?
...st yes IronPython and IronRuby demonstrates that the CLR can provide a platform onto which you can build dynamically typed languages, the goal of the CLS was to provide a set of standards that transcend language functionality and allow them to interoperate sucessfully and safely. I don't think what ...