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nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
...80 like this:
listen 80;
listen [::]:80 ipv6only=on default_server;
For more information, see:
http://forum.linode.com/viewtopic.php?t=8580
http://wiki.nginx.org/HttpCoreModule#listen
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Retain precision with double in Java
...number is stored as a binary representation of a fraction and a exponent.
More specifically, a double-precision floating point value such as the double type is a 64-bit value, where:
1 bit denotes the sign (positive or negative).
11 bits for the exponent.
52 bits for the significant digits (the f...
How to translate between Windows and IANA time zones?
...a("Eastern Standard Time", "CA");
// result: "America/Toronto"
There are more examples on the project site.
It's important to recognize that while an IANA time zone can be mapped to a single Windows time zone, the reverse is not true. A single Windows time zone might be mapped to more than one IA...
Check if a string is null or empty in XSLT
...ollowing Java?":
!(categoryName == null || categoryName.equals(""))
For more details e.g., distinctly identifying null vs. empty, see johnvey's answer below and/or the XSLT 'fiddle' I've adapted from that answer, which includes the option in Michael Kay's comment as well as the sixth possible int...
How can I capitalize the first letter of each word in a string?
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git: How to diff changed files versus previous versions after a pull?
...fy commits - see the specifying revisions section of man git-rev-parse for more details. In this case, you probably want:
git diff HEAD@{1}
The @{1} means "the previous position of the ref I've specified", so that evaluates to what you had checked out previously - just before the pull. You can ta...
proper hibernate annotation for byte[]
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Legality of COW std::string implementation in C++11
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How should I validate an e-mail address?
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Is there a way to squash a number of commits non-interactively?
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