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PostgreSQL error 'Could not connect to server: No such file or directory'
Like some others I am getting this error when I run rake db:migrate in my project or even try most database tasks for my Ruby on Rails 3.2 applications.
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Convert JSON String To C# Object
...lution. After all, setTest(String test) is not returning, which is compile error as well.
– Payam
Aug 18 '14 at 3:05
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What is the difference between varchar and nvarchar?
...ead from or write to the database. Conversions take time, and are prone to errors. And recovery from conversion errors is a non-trivial problem.
If you are interfacing with an application that uses only ASCII, I would still recommend using Unicode in the database. The OS and database collation algo...
Checking for a dirty index or untracked files with Git
.../null| egrep "^(M| M)" | wc -l)
Note: The 2>/dev/null filters out the error messages so you can use these commands on non-git directories. (They'll simply return 0 for the file counts.)
Edit:
Here are the posts:
Adding Git Status Information to your Terminal Prompt
Improved Git-enabled Shel...
Regular expression to match non-ASCII characters?
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var words_in_text = function (text) {
var regex = /([\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052...
rmagick gem install “Can't find Magick-config”
I get the error shown below when attempting to install the rmagick gem. I am on Snowleopard 10.6 using RVM, Ruby 1.9.2-head and Rails 3.05. Responses to similar questions recommended installing ImageMagick, which I successfully did. Other suggested installing the "libmagick9-dev library", however, I...
Convert a Scala list to a tuple?
... solution, the complaints about type-safety mean that you might get a MatchError at runtime. If you want, you can try-catch that error and do something if the List has the wrong length. Another nice feature of this solution is that the output doesn't have to be a tuple, it can be one of your own c...
How can I check if a single character appears in a string?
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– Felix Neumeyer
Oct 18 '15 at 16:05
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What is the id( ) function used for?
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answered Mar 27 '13 at 19:05
RobᵩRobᵩ
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汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
....COM即可。现在，磁盘上应该有 SMILE.COM 文件了，你只要在提示符号C：>下，直接输入文件名称 SMILE ，就可以执行这个程序了。
你是否觉得用编译器产生程序的方法，比 DEBUG 麻烦多了！以小程序而言，的确是如此，但对于较...