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What is the difference between square brackets and parentheses in a regex?
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Rotated elements in CSS that affect their parent's height correctly
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... and then use the following CSS, to rotate anti-clockwise (or see the commented out transform for a way to change it into a clockwise rotation):
.rotation-wrapper-outer {
display: table;
}
.rotation-wrapper-inner {
padding: 50% 0;
height: 0;
}
.element-to-rotate {
display: block;
tra...
SPA best practices for authentication and session management
...ame and password trivially. Most of the "Basic Auth is insecure" arguments come from a place of "Basic Auth over HTTP" which is an awful idea.
The browser provides baked-in HTTP Basic Auth support, but it is ugly as sin and you probably shouldn't use it for your app. The alternative, though, is to...
How to redirect to previous page in Ruby On Rails?
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'const string' vs. 'static readonly string' in C#
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When you use a const string, the compiler embeds the string's value at compile-time.
Therefore, if you use a const value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-com...
How to create a new database using SQLAlchemy?
...amed postgres to use the postgres role, so the simplest thing is to just become that user. At any rate, create an engine as usual with a user that has the permissions to create a database:
>>> engine = sqlalchemy.create_engine("postgres://postgres@/postgres")
You cannot use engine.execu...
When to use pip requirements file versus install_requires in setup.py?
... what you know does work, and may include optional dependencies that you recommend. For example you might use SQLAlchemy but suggest MySQL, and so put MySQLdb in the requirements file).
So, in summary: install_requires is to keep people away from things that you know don't work, while requirements...
Check if object exists in JavaScript
... if its always a string, you really could(should) do !== for the comparison.
– Micah
Dec 8 '12 at 14:02
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How can I setup & run PhantomJS on Ubuntu?
I set up PhantomJS and recorded it to video: https://www.dailymotion.com/video/xnizmh_1_webcam
25 Answers
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Running code in main thread from another thread
...ntion, that I need to update it. Since the original answer was posted, the comment from @dzeikei has gotten almost as much attention as the original answer. So here are 2 possible solutions:
1. If your background thread has a reference to a Context object:
Make sure that your background worker thr...