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What is scope/named_scope in rails?
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213
A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this:
You have User...
Foreign Key to non-primary key
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190
If you really want to create a foreign key to a non-primary key, it MUST be a column that has ...
Using varchar(MAX) vs TEXT on SQL Server
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318
The VARCHAR(MAX) type is a replacement for TEXT. The basic difference is that a TEXT type will ...
Why does casting int to invalid enum value NOT throw exception?
...ArgumentException(string.Format("{0} is not a defined value for enum type {1}",
enumValue, typeof(T).FullName)));
return parsedValue;
}
public static bool IsDefined(T enumValue)
{
return System.Enum.IsDefined(typeof (T), enumValue);
}
}
public sta...
When vectors are allocated, do they use memory on the heap or the stack?
... how you use them (you could point element 0 to the free store and element 1 to the stack, say).
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Send an Array with an HTTP Get
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154
That depends on what the target server accepts. There is no definitive standard for this. See ...
HTTP Content-Type Header and JSON
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137
The Content-Type header is just used as info for your application. The browser doesn't care w...
How to unpack and pack pkg file?
... a file but I dont know how pack again to pkg.
http://emresaglam.com/blog/1035
http://ilostmynotes.blogspot.com/2012/06/mac-os-x-pkg-bom-files-package.html
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Change old commit message on Git
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130
It says:
When you save and exit the editor, it will rewind you back to that last commit in th...
Which regular expression operator means 'Don't' match this character?
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edited Sep 10 '14 at 7:51
answered May 8 '11 at 5:22
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