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Changing the color of an hr element
... also need to specify background-color (as @Ibu suggested in his answer).
HTML 5 Boilerplate project in its default stylesheet specifies the following rule:
hr { display: block; height: 1px;
border: 0; border-top: 1px solid #ccc;
margin: 1em 0; padding: 0; }
An article titled “12 Littl...
JPA CascadeType.ALL does not delete orphans
...s parent's collection. See download.oracle.com/javaee/6/tutorial/doc/bnbqa.html#giqxy
– Archie
Sep 13 '10 at 22:37
Ple...
Android Json and null values
... ).
Reference: http://developer.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
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Pip install Matplotlib error with virtualenv
... -m pip install matplotlib
(from https://matplotlib.org/users/installing.html)
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how to check and set max_allowed_packet mysql variable [duplicate]
...read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
EDIT
The [mysqld] is necessary to make the max_allowed_packet working since at least mysql version 5.5.
Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required 32M max_allowed_packet....
Undefined reference to pthread_create in Linux
...@sholsapp Here is the explanation: webpages.charter.net/ppluzhnikov/linker.html
– Employed Russian
Jan 13 '12 at 4:33
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MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
...quivalent performance wise.
http://dev.mysql.com/doc/refman/5.6/en/insert.html says:
INSERT inserts new rows into an existing table. The INSERT ... VALUES and INSERT ... SET forms of the statement insert rows based on explicitly specified values. The INSERT ... SELECT form inserts rows selected...
raw_input function in Python
...to input() in Python 3.
From http://docs.python.org/dev/py3k/whatsnew/3.0.html
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How to convert CFStringRef to NSString?
...documentation/Cocoa/Conceptual/GarbageCollection/Articles/gcCoreFoundation.html:
It is important to appreciate the asymmetry between Core Foundation and Cocoa—where retain, release, and autorelease are no-ops. If, for example, you have balanced a CFCreate… with release or autorelease, you will ...
cv2.imshow command doesn't work properly in opencv-python
...ere:
http://txt.arboreus.com/2012/07/11/highgui-opencv-window-from-ipython.html
If you run an interactive ipython session, and want to use highgui
windows, do cv2.startWindowThread() first.
In detail: HighGUI is a simplified interface to display images and
video from OpenCV code. It sho...