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How do you rotate a two dimensional array?
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One of my favorite SO answers of all time. Very instructive!
– g33kz0r
Apr 4 '13 at 2:49
3
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...e some applications if you have some group or other access to files, especially if it's a web directory.
– StingeyB
Jul 18 '12 at 18:41
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mailto link with HTML body
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As you can see in RFC 6068, this is not possible at all:
The special <hfname> "body" indicates that the associated <hfvalue>
is the body of the message. The "body" field value is intended to
contain the content for the first text/plain body part of the
m...
Iterating through a range of dates in Python
...erated over. Also the "if" in the generator seems to be unnecessary.
After all, a linear sequence should only require one iterator, not two.
Update after discussion with John Machin:
Maybe the most elegant solution is using a generator function to completely hide/abstract the iteration over the rang...
What is the difference between
...mple, if you have multiline ERB <%...%>, <%#...%> comments out all of it, which it wouldn't do if it was just a normal comment (i.e. it would only comment out the line it's on).
– BalinKingOfMoria Reinstate CMs
Jan 11 '16 at 22:08
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What is the difference between require() and library()?
...uld add this:
It is probably best to avoid using require() unless you actually will be using the value it returns e.g in some error checking loop such as given by thierry.
In most other cases it is better to use library(), because this will give an error message at package loading time if the pack...
Automatic HTTPS connection/redirect with node.js/express
...ng to get HTTPS set up with a node.js project I'm working on. I've essentially followed the node.js documentation for this example:
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JSON.NET Error Self referencing loop detected for type
I tried to serialize POCO class that was automatically generated from Entity Data Model .edmx and when I used
25 Answers
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LEFT JOIN vs. LEFT OUTER JOIN in SQL Server
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Absolutely correct. OUTER is allowed for ANSI-92 compatibility.
– Sean Reilly
Jan 2 '09 at 21:34
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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...MyISAM表类型的话，可按如下方式操作：
shell> mysqldump --all-databases --master-data=1 > data.sql
注：master-data选项缺省会打开lock-all-tables，并写入CHANGE MASTER TO语句。
如果数据库使用的是InnoDB表类型的话，则应该使用single-transcation：
s...