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What is the difference between “screen” and “only screen” in media queries?
... only screen and (max-width: 480px;) { … }
Read this article for more http://webdesign.about.com/od/css3/a/css3-media-queries.htm
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C# Thread safe fast(est) counter
...nd is completely thread safe:
Interlocked.Increment(ref myNum);
Source: http://msdn.microsoft.com/en-us/library/dd78zt0c.aspx
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What Are the Differences Between PSR-0 and PSR-4?
...ere are some more difference in details between PSR-0 and PSR-4, see here: http://www.php-fig.org/psr/psr-4/
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Logger slf4j advantages of formatting with {} instead of string concatenation
...t use the new Object[]{a,b,c,d} syntax to pass an array instead. See e.g. http://slf4j.org/apidocs/org/slf4j/Logger.html#debug(java.lang.String, java.lang.Object[]).
Regarding the speed: Ceki posted a benchmark a while back on one of the lists.
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How to configure an existing git repo to be shared by a UNIX group
...orce-update the remote branch with a -f flag to your push command.
(from http://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration)
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Python argparse mutual exclusive group
...
There is a python patch (in development) that would allow you to do this.
http://bugs.python.org/issue10984
The idea is to allow overlapping mutually exclusive groups. So usage might look like:
pro [-a xxx | -b yyy] [-a xxx | -c zzz]
Changing the argparse code so you can create two groups like...
Why should I use tags vs. release/beta branches for versioning?
...nt to a specific version.
Here's a good writeup on this type of workflow: http://nvie.com/posts/a-successful-git-branching-model/
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what is the difference between ?:, ?! and ?= in regex?
...sitive look behind
?<! is for negative look behind
Please check here: http://www.regular-expressions.info/lookaround.html for very good tutorial and examples on lookahead in regular expressions.
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Remove non-ascii character in string
... 8F U 200F &#8207; right-to-left-mark
Some references on those:
http://www.fileformat.info/info/unicode/char/200B/index.htm
https://en.wikipedia.org/wiki/Left-to-right_mark
Note that although the encoding of the embedded character is UTF-8, the encoding in the regular expression is not...
What is a tracking branch?
...nd branches. This often referenced link web.archive.org/web/20130419172453/http://www.gitguys.com/… distinguishes between "tracking branches" & "remote tracking branches". They call origin/master a "remote tracking branch" - I agree - but then they call "master" a "tracking branch" too. What i...