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How do I update Ruby Gems from behind a Proxy (ISA-NTLM)
...mple if my username is "wolfbyte", my password is "secret" and my proxy is called "pigsy" and operates on port 8080:
SET HTTP_PROXY=http://wolfbyte:secret@pigsy:8080
You might want to be careful how you manage that because it stores your password in plain text in the machine's session but I don't...
Is MVC a Design Pattern or Architectural pattern
...chitectural pattern. My hunch is that MS and Sun are just being sloppy and calling every pattern a "design pattern".
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sizeof single struct member in C
... but don't accomplish anything different. If you want to be more explicit, call it PARENT_TEXT_LEN or something equally descriptive. You can then also use it in conditionals throughout your code to prevent buffer length errors and it will be doing simple integer comparisons.
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ASP.NET MVC How to convert ModelState errors to json
...here(m => m.Value.Any());
}
return null;
}
}
Then call that extension method and return the errors from the controller action (if any) as json:
if (!ModelState.IsValid)
{
return Json(new { Errors = ModelState.Errors() }, JsonRequestBehavior.AllowGet);
}
And then final...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
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This calls is_dir twice for each recursed directory. If the argument is a symlink, it also follows it instead of deleting the symlink, which might or might not be what you want. In any case, it's not what rm -rf does.
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Cosine Similarity between 2 Number Lists
...l scientific routines for example, "routines for computing integrals numerically, solving differential equations, optimization, and sparse matrices." It uses the superfast optimized NumPy for its number crunching. See here for installing.
Note that spatial.distance.cosine computes the distance, and...
Difference between null and empty (“”) Java String
...h()); // error; b is not an object
"" is still a string, meaning you can call its methods and get meaningful information. null is an empty variable - there's literally nothing there.
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SQL Data Reader - handling Null column values
...return reader.GetString(colIndex);
return string.Empty;
}
Now you can call it like this:
employee.FirstName = SqlReader.SafeGetString(indexFirstName);
and you'll never have to worry about an exception or a null value again.
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How do I get the color from a hexadecimal color code using .NET?
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Assuming you mean the HTML type RGB codes (called Hex codes, such as #FFCC66), use the ColorTranslator class:
System.Drawing.Color col = System.Drawing.ColorTranslator.FromHtml("#FFCC66");
If, however you are using an ARGB hex code, you can use the ColorConverter c...
How to get a dependency tree for an artifact?
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The solution is to call dependency:tree with the artifact's pom.xml file:
mvn -f "$HOME/.m2/repository/$POM_PATH" dependency:tree
See also How to list the transitive dependencies of an artifact from a repository?
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