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Absolute vs relative URLs
...ork because it is relative.
images/example.png
This is also a relative URL although a bit different than the previous one. This URL is relative to the current path. What this means is that it will resolve to different paths depending on where you are in the site.
For example when you are on the page...
Is it good practice to use java.lang.String.intern()?
...s usually quite small; you may run into an OutOfMemoryError with plenty of free heap space.
(from Michael Borgwardt)
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Copy existing project with a new name in Android Studio
... answered Aug 20 '13 at 7:39
free3domfree3dom
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Django Setup Default Logging
... Thanks it seems that this '' means root logger. This useful piece of information was not found in Django documentation.
– Eino Mäkitalo
Mar 12 '13 at 10:11
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How to query as GROUP BY in django?
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Django does not support free group by queries. I learned it in the very bad way. ORM is not designed to support stuff like what you want to do, without using custom SQL. You are limited to:
RAW sql (i.e. MyModel.objects.raw())
cr.execute sentences...
Where are Docker images stored on the host machine?
...s.
/var/lib/docker/repositories-aufs is a JSON file containing local image information. This can be viewed with the command docker images.
In the case of devicemapper:
/var/lib/docker/devicemapper/devicemapper/data stores the images
/var/lib/docker/devicemapper/devicemapper/metadata the metadata...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...preceded .net, it was necessary for any routine which received a string to free it when it was done with it. Because it was very common for empty strings to be passed into and out of routines, and because attempting to "free" a null pointer was defined as a legitimate do-nothing operation, Microsof...
StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
...['Servers'][1]['userconfig'] = 'pma_userconfig';
$cfg['Servers'][1]['table_info'] = 'pma_table_info';
$cfg['Servers'][1]['column_info'] = 'pma_column_info';
$cfg['Servers'][1]['history'] = 'pma_history';
$cfg['Servers'][1]['recent'] = 'pma_recent';
$cfg['Servers'][1]['table_uiprefs'] = 'pma_table_ui...
Artificially create a connection timeout error
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To test a connection timeout at the socket level, freeze the nc process with a kill -STOP <pid> (or just CTRL-Z it without putting in background). The system will act as if the server was running, but wait for the server to accept the connection, resulting in a connect...