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Enum ToString with user friendly strings
...erything is OK";
case ErrorLevel.Low:
return "SNAFU, if you know what I mean.";
case ErrorLevel.High:
return "Reaching TARFU levels";
case ErrorLevel.SoylentGreen:
return "ITS PEOPLE!!!!";
default:
return "Get your damn dirty hands off me you F...
How to fix Error: listen EADDRINUSE while using nodejs?
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@Nobita Does this work in Windows? Now I realize it might be a MAC OS command. Anyway, I restarted my PC and didn't get this error anymore. I think some other application was using the same port node was trying to use.
– Ulysses Alves
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Javascript regex returning true.. then false.. then true.. etc [duplicate]
... end.
[a-z0-9_-]
Whether that would cause this problem or not, I don't know.
Additional notes:
The first and last characters are allowed to be any character that isn't - or _ rather than being restricted to a-z0-9
a-z0-9 doesn't include uppercase characters. You need a-zA-Z0-9 for that.
a-zA-...
How to use JUnit to test asynchronous processes
...cutor {
@Override public void execute(Runnable r) {
r.run();
}
}
Now my JUnit test of the asynchronous method is pretty clean --
@Test public void testDoAsync() {
Executor executor = new SynchronousExecutor();
Foo objectToTest = new Foo(executor);
Callback callback = mock(Callback....
How to get a random number in Ruby
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@yar: It is a bit "perlish". Now Ruby has it's Random class (see my answer)
– Marc-André Lafortune
May 5 '10 at 14:02
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Shell command to sum integers, one per line?
...the stack has two or more values, run "add_top_of_stack"
Print the result, now the only item left in the stack
To really understand the simplicity and power of dc, here is a working Python script that implements some of the commands from dc and executes a Python version of the above command
How to escape @ characters in Subversion managed file names?
...aths or URLs that actually have at signs in them. After all, how does svn know whether news@11 is the name of a directory in my tree or just a syntax for “revision 11 of news”? Thankfully, while svn will always assume the latter, there is a trivial workaround. You need only append an at sign to ...
Django Admin - change header 'Django administration' text
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As of Django 1.7 you don't need to override templates. You can now implement site_header, site_title, and index_title attributes on a custom AdminSite in order to easily change the admin site’s page title and header text. Create an AdminSite subclass and hook your instance into your UR...
Input placeholders for Internet Explorer
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That plugin isn't maintained anymore, and has a lot of known issues.
– Ian Dunn
Nov 16 '12 at 22:51
13
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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
...at references another, but it is failing for some reason. With my limited knowledge of MySQL, the only thing that could possibly be suspect is that there is a foreign key on a different table referencing the one I am trying to reference.
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