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Easy way to print Perl array? (with a little formatting)
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# better than Dumper --you're ready for the WWW....
use JSON::XS;
print encode_json \@some_array
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How to configure PostgreSQL to accept all incoming connections
...cept incoming connections from any host of the above range.
Source: http://www.linuxtopia.org/online_books/database_guides/Practical_PostgreSQL_database/c15679_002.htm
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What is the dual table in Oracle?
...unction in a select statement:
e.g. select sysdate from dual;
See http://www.adp-gmbh.ch/ora/misc/dual.html
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invalid byte sequence for encoding “UTF8”
... a different source, consult the list of character encodings here:
http://www.postgresql.org/docs/8.3/static/multibyte.html
If you're getting it from a Mac, you may have to run it through the "iconv" utility first to convert it from MacRoman to UTF-8.
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Which Eclipse version should I use for an Android app?
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If you need to install or update Eclipse, you can download it from http://www.eclipse.org/downloads/. The "Eclipse Classic" version is recommended. Otherwise, a Java or RCP version of Eclipse is recommended.
April 2014 Updated
Eclipse Indigo (Version 3.7.2) or higher is required. I'll suggest...
Should accessing SharedPreferences be done off the UI Thread?
...f an application wide variable is different from NULL, reason -> http://www.developerphil.com/dont-store-data-in-the-application-object/
The application object will not stay in memory forever, it will get killed. Contrary to popular belief, the app won’t be restarted from scratch. Android w...
Query an XDocument for elements by name at any depth
...TheDocumentContent =
@"
<TheNamespace:root xmlns:TheNamespace = 'http://www.w3.org/2001/XMLSchema' >
<TheNamespace:GrandParent>
<TheNamespace:Parent>
<TheNamespace:Child theName = 'Fred' />
<TheNamespace:Child theName = 'Gabi' />
&l...
How do JavaScript closures work?
...ues makes it more difficult to understand. Here is the true story jsfiddle.net/rjdx34k0/3
– Hugolpz
Sep 2 at 19:13
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How to draw circle in html page?
...canvas> tag.
To draw circle in embedded SVG:
<svg xmlns="http://www.w3.org/2000/svg">
<circle cx="50" cy="50" r="50" fill="red" />
</svg>
Circle in <canvas>:
var canvas = document.getElementById("circlecanvas");
var context = canvas.getContext("2d");...
Can't access RabbitMQ web management interface after fresh install
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It's new features since the version 3.3.0
http://www.rabbitmq.com/release-notes/README-3.3.0.txt
server
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25603 prevent access using the default guest/guest credentials except via
localhost.
If you want enable the guest user read this or this RabbitMQ 3.3...