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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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That's interesting. What about consistency by the way? What if there are hundreds of jobs on a queue and the node holding them in ram crashes?
– Mahn
Oct 22 '12 at 14:24
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What regular expression will match valid international phone numbers?
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All country codes are defined by the ITU. The following regex is based on ITU-T E.164 and Annex to ITU Operational Bulletin No. 930 – 15.IV.2009. It contains all current country codes and codes reserved for future use. While it could be shortened a bit,...
Is there a “previous sibling” selector?
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From the CSS3 standard: The elements represented by the two sequences share the same parent in the document tree and the element represented by the first sequence precedes (not necessarily immediately) the element represented by the second one.
– Lie R...
Argparse: Required arguments listed under “optional arguments”?
...ional. All other parameters are positional parameters and as such required by design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their design. Since they are still part of the non-positional arguments, they will still be listed under ...
Add a properties file to IntelliJ's classpath
... the Compiler settings. Check that "?*.properties" is in there. It's there by default, but that's the only other thing I can think of off the top of my head.
– ColinD
Sep 22 '10 at 4:02
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Use 'import module' or 'from module import'?
...ule.foo in your code can be tedious and redundant (tedium can be minimized by using import module as mo then typing mo.foo)
from module import foo
Pros:
Less typing to use foo
More control over which items of a module can be accessed
Cons:
To use a new item from the module you have to upda...
Using varchar(MAX) vs TEXT on SQL Server
...ity VARCHAR(MAX) gives you is that it is also can be used with = and GROUP BY as any other VARCHAR column can be. However, if you do have a lot of data you will have a huge performance issue using these methods.
In regard to if you should use LIKE to search, or if you should use Full Text Indexing ...
Android:What is difference between setFlags and addFlags for intent
...dle the Intent.setflag mainly depends on type of component being executed by the Intent.It returns the same intent object for chaining multiple calls into a single statement.
intent.addFlags(int num);
This helps to add additional flags to a particular intent with the existing values.this also re...
#if Not Debug in c#?
...pilation symbol. Here's an MSDN article for a more in-depth explanation.
By default, when in Debug configuration, Visual Studio will check the Define DEBUG constant option under the project's Build properties. This goes for both C# and VB.NET. If you want to get crazy you can define new build conf...
Requests — how to tell if you're getting a 404
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1xx and 3xx should (and are) handled transparently by the library. I was talking specifically about 4xx errors. Of course sometimes you may want to read a 4xx response so we shouldn't impose it on everyone, but I wish there was a flag you could pass to .get() instead of calli...