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C++ “virtual” keyword for functions in derived classes. Is it necessary?
...lates, too: allowing to construct from different interfaces allows you to 'cast' between different B<> types.
It's questionable whether you should add support for const A& in t_hello(). The usual reason for this rewrite is to move away from inheritance-based specialization to template-bas...
SQL Server: Get data for only the past year
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The following adds -1 years to the current date:
SELECT ... From ... WHERE date > DATEADD(year,-1,GETDATE())
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...rate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are still in the clipboard, so we can paste it multiple times without copying each time). We only have to consider up to 4 c...
IntelliJ IDEA way of editing multiple lines
...ossibility to edit multiple lines.
Use:
Alt + Shift + Mouse click
for selection. More about this new improvement in IntelliJ blogpost here. Very useful feature.
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Prevent text selection after double click
...lick event on a span in my web app. A side-effect is that the double click selects text on the page. How can I prevent this selection from happening?
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jQuery Validate Required Select
I am trying to validate html select element using jQuery Validate plugin. I set "required" rule to true but it always passes validation because zero index is chosed by default. Is there any way to define empty value that is used by required rule?
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Index of Currently Selected Row in DataGridView
It's that simple. How do I get the index of the currently selected Row of a DataGridView ? I don't want the Row object, I want the index (0 .. n).
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Is unsigned integer subtraction defined behavior?
...ake sure that the result is signed, then stored it into signed variable or cast it to signed. When you want to get the difference between numbers and make sure that the modular arithmetic will not be applied, then you should consider using abs() function defined in stdlib.h:
int c = five - seven; ...
Obtain form input fields using jQuery?
...s[field.name] = field.value;
});
Note that this snippet will fail on <select multiple> elements.
It appears that the new HTML 5 form inputs don't work with serializeArray in jQuery version 1.3. This works in version 1.4+
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How to automatically navigate to the current class in Intellij Idea Project Tool Window?
...expands to show the currently open class (or file), and this class becomes selected in the tree.
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