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“Wrong type argument: commandp” error when binding a lambda to a key
... I think there are no down sides. From the documentation: >> The "call" to ‘interactive’ is actually a declaration rather than a function; it tells ‘call-interactively’ how to read arguments to pass to the function. When actually called, ‘interactive’ just returns nil.
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JavaScript inheritance: Object.create vs new
...erty that is not inherited from the super implementation, you just need to call super in the child's constructor: SomeBaseClass.call(this). Check this fiddle: jsfiddle.net/NhQGB
– ChrisRich
Oct 28 '12 at 10:08
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Qt: How do I handle the event of the user pressing the 'X' (close) button?
...t();
}
}
If you're subclassing a QDialog, the closeEvent will not be called and so you have to override reject():
void MyDialog::reject()
{
QMessageBox::StandardButton resBtn = QMessageBox::Yes;
if (changes) {
resBtn = QMessageBox::question( this, APP_NAME,
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Differences between Ant and Maven [closed]
...Right, so someone like Steve Loughran is going to read that comparison and call foul. He's going to talk about how the answer completely ignores something called Ivy and the fact that Ant can reuse build logic in the more recent releases of Ant. This is true. If you have a bunch of smart people ...
Creating threads - Task.Factory.StartNew vs new Thread()
...at sentence was a little bit too coarse. Synchronous execution of tasks is called inlining. When scheduling a task on the threadpool (default scheduler) from the UI Thread it will not occur. It will only occur if the ambient scheduler ('TaskScheduler.Current') is the same as the scheduler of a task ...
What is the canonical way to check for errors using the CUDA runtime API?
...tag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , but what is the best way to put these together to reliably catch and report er...
Why does an overridden function in the derived class hide other overloads of the base class?
...he word "hide"), you already know what is going on here. The phenomenon is called "name hiding". For some reason, every time someone asks a question about why name hiding happens, people who respond either say that this called "name hiding" and explain how it works (which you probably already know),...
How to pass a class type as a function parameter
I have a generic function that calls a web service and serialize the JSON response back to an object.
6 Answers
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Error 1022 - Can't write; duplicate key in table
...boy with a foreign key X
The next constraint with the foreign key X can be called boy1
I'm sure you'd figure out better names than I did. ????
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Get the current year in JavaScript
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Create a new Date() object and call getFullYear():
new Date().getFullYear()
// returns the current year
Hijacking the accepted answer to provide some basic example context like a footer that always shows the current year:
<footer>
&copy...