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Function overloading by return type?
...rred overloads would be an improvement. Among other things, suppose types Foo and Bar support bidirectional conversion, and a method uses type Foo internally but returns type Bar. If such method is called by code which will immediately coerce the result to type Foo, using the Bar return type might...
Use of “this” keyword in formal parameters for static methods in C#
...means that you can call
MyClass myClass = new MyClass();
int i = myClass.Foo();
rather than
MyClass myClass = new MyClass();
int i = Foo(myClass);
This allows the construction of fluent interfaces as stated below.
sh...
How to evaluate a math expression given in string form?
...);
ScriptEngine engine = mgr.getEngineByName("JavaScript");
String foo = "40+2";
System.out.println(engine.eval(foo));
}
}
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Hidden Features of Xcode
...
Use #pragma for organization
You can use:
#pragma mark Foo
... as a way to organize methods in your source files. When browsing symbols via the pop up menu, whatever you place in Foo will appear bold in the list.
To display a separator (i.e. horizontal line), use:
#pragma mar...
How to remove convexity defects in a Sudoku square?
I was doing a fun project: Solving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have completed the task, but at the end I found a little problem for which I came here.
...
Get __name__ of calling function's module in Python
Suppose myapp/foo.py contains:
3 Answers
3
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Command line: piping find results to rm
...lag a try. I'm passing a full path but getting back "/usr/www2/bar/htdocs/foo/rsync/httpdocs/db_backups/: relative path potentially not safe". Any idea why?
– jerrygarciuh
Jun 25 '12 at 15:25
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How to design a multi-user ajax web application to be concurrently safe
...nt to poll independently or full datasets "artifact x has changed to value foo"
javascript artifact-updater does what it can to fetch new values as soon as they become known to have updated. It executes new ajax requests or gets feeded by the javascript client.
The pages DOM-content is updated, the ...
Maven parent pom vs modules pom
...lugin:goal format from your internal repository. For example, you can have foo-maven-plugin with the groupId of org.example providing goal generate-foo. If you try to run it from the project root using command like mvn org.example:foo-maven-plugin:generate-foo, it will fail to run on the aggregate m...
How to select only the first rows for each unique value of a column
...serted) AS First
FROM
MyTable
GROUP BY
CName
) foo
JOIN
MyTable M ON foo.CName = M.CName AND foo.First = M.Inserted
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