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How to pass the -D System properties while testing on Eclipse?
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Run -> Run configurations, select project, second tab: “Arguments”. Top box is for your program, bottom box is for VM arguments, e.g. -Dkey=value.
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Why should I avoid std::enable_if in function signatures
...{}
}
Tag dispatching does not manipulate the overload set, but helps you select exactly the function you want by providing the proper arguments through a compile-time expression (e.g. in a type trait). In my experience, this is much easier to debug and get right. If you are an aspiring library wri...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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PSQLException: current transaction is aborted, commands ignored until end of transaction block
...t = connection.createStatement();
statement.executeQuery("select * from moobar");
//This SQL is correctly formed, yet it throws the
//'transaction is aborted' SQL Exception, why? Because:
//A. you were in a transaction.
//B. You ran a SQL stateme...
CSS: how do I create a gap between rows in a table?
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This solution does not allow you to selectively apply the spacing to certain rows.
– Flimm
Feb 21 '14 at 11:09
15
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How to check if a model has a certain column/attribute?
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For bonus points use Hash#select: number_hash.select { |key, value| Number.column_names.include? key }
– hgmnz
Nov 10 '09 at 18:31
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Eclipse interface icons very small on high resolution screen in Windows 8.1
... > compatibility > tick on 'Override high DPI scaling behaviour' and select System Enhanced from the dropdown as shown on pic below. Relaunch eclipse after changes.
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What is “with (nolock)” in SQL Server?
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If you use NOLOCK with a SELECT you run the risk of returning the same rows more than once (duplicated data) if data is ever inserted (or updated) into the table while doing a select.
– Ian Boyd
Sep 19 '13 at 0:...
Get the current displaying UIViewController on the screen in AppDelegate.m
...return [UIWindow getVisibleViewControllerFrom:[((UITabBarController *) vc) selectedViewController]];
} else {
if (vc.presentedViewController) {
return [UIWindow getVisibleViewControllerFrom:vc.presentedViewController];
} else {
return vc;
}
}
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jQuery find parent form
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I would suggest using closest, which selects the closest matching parent element:
$('input[name="submitButton"]').closest("form");
Instead of filtering by the name, I would do this:
$('input[type=submit]').closest("form");
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