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Write text files without Byte Order Mark (BOM)?
...to generate a BOM). There are two easy ways to do this:
1. Explicitly specifying a suitable encoding:
Call the UTF8Encoding constructor with False for the encoderShouldEmitUTF8Identifier parameter.
Pass the UTF8Encoding instance to the stream constructor.
' VB.NET:
Dim utf8WithoutBom As New Sys...
What is this: [Ljava.lang.Object;?
... array of Object.
The naming scheme is documented in Class.getName():
If this class object represents a reference type that is not an array type then the binary name of the class is returned, as specified by the Java Language Specification (§13.1).
If this class object represents a primit...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
... requires a parameter before the varargs list, so the prototype f(...) specifically allowed by C++ is useless. Cross-referencing with C99, it is illegal in plain C. So, this is most bizarre.
Usage note
By request, here is a demonstration of the double ellipsis:
#include <cstdio>
#include &l...
SVN checkout the contents of a folder, not the folder itself
...
svn co svn://path destination
To specify current directory, use a "." for your destination directory:
svn checkout file:///home/landonwinters/svn/waterproject/trunk .
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SQL set values of one column equal to values of another column in the same table
...s a function that returns its first non-null argument.
In this example, if B on a given row is not null, the update is a no-op.
If B is null, the COALESCE skips it and uses A instead.
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Simple tool to 'accept theirs' or 'accept mine' on a whole file using git
...it upsteam and is coming back to me through a pull, but may be slightly modified in various places.
5 Answers
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How to show all privileges from a user in oracle?
Can someone please tell me how to show all privileges/rules from a specific user in the sql-console?
6 Answers
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How do you manually execute SQL commands in Ruby On Rails using NuoDB
...e_statement(sql)
results = ActiveRecord::Base.connection.execute(sql)
if results.present?
return results
else
return nil
end
end
Using execute_statement will return the records found and if there is none, it will return nil.
This way I can just call it anywhere on the rails appli...
Difference between `mod` and `rem` in Haskell
What exactly is the difference between mod and rem in Haskell?
4 Answers
4
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Using Default Arguments in a Function
...you can do what you want:
function foo($blah, $x = null, $y = null) {
if (null === $x) {
$x = "some value";
}
if (null === $y) {
$y = "some other value";
}
code here!
}
This way, you can make a call like foo('blah', null, 'non-default y value'); and have it ...