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In C++, what is a “namespace alias”?
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More on this topic http://channel9.msdn.com/Series/C9-Lectures-Stephan-T-Lavavej-Core-C-/Stephan-T-Lavavej-Core-C-1-of-n
It is all about choosing an alias for a looong namespace name, such as:
namespace SHORT = NamespaceFirst::NameSpaceNested...
How do I query using fields inside the new PostgreSQL JSON datatype?
... data->'images'->'thumbnail'->'url' AS thumb FROM instagram;
see http://clarkdave.net/2013/06/what-can-you-do-with-postgresql-and-json/ for some nice examples and a tutorial.
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How do I unit test web api action method when it returns IHttpActionResult?
...s just a helper for the type OkResult which sets the response status to be HttpStatusCode.Ok...so you can just check if the instance of your action result is an OkResult...some examples(written in XUnit):
// if your action returns: NotFound()
IHttpActionResult actionResult = valuesController.Get(10...
Ignore .pyc files in git repository
... you can finally add the *.pyc line to the .gitignore file.
(adapted from http://yuji.wordpress.com/2010/10/29/git-remove-all-pyc/)
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Using python “with” statement with try-except block
...make sure to close it.
Here is link for understanding "with" statement : http://effbot.org/zone/python-with-statement.htm
Edit: Yes your usage of "with" is correct and functionality of both blocks of code is identical.
Question about why to use "with" ? it's because of benefits you get with it. l...
Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
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http://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis provides an overview of this issue from PostgreSQL's perspective.
Is DDL transactional according to this document?
PostgreSQL - yes
My...
HMAC-SHA1 in bash
...ary key in some way that would not break the algorithm. Then I found this: http://openssl.6102.n7.nabble.com/command-line-hmac-with-key-in-hex-td6754.html
Stephen Henson's reply requires the hash_hmac function to return the value in hex format. So it needs to echo the following:
$ echo -n "$data" ...
How do I pass a class as a parameter in Java?
...e through an interface. here's one of dozens of articles on that pattern: http://today.java.net/pub/a/today/2005/03/09/factory.html
using a class within a factory can be accomplished in a variety of ways, most notably by having a config file that contains the name of the class that implements the ...
Redirecting to a relative URL in JavaScript
.... You should only use window.location.replace when you want to simulate an http redirect (thus not generating a history item).
– Benji XVI
Oct 13 '11 at 14:50
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Why isn't my JavaScript working in JSFiddle?
... Better, yet, change it to apply the handler to the object unobtrusively: http://jsfiddle.net/pUeue/
$('input[type=button]').click( function() {
alert("test");
});
Note applying the handler this way, instead of inline, keeps your HTML clean. I'm using jQuery, but you could do it with or w...