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How do I trigger the success callback on a model.save()?
...you don't pass the model when calling save. the first argument of save is extra attributes that you can set before calling save. It'd be like calling model.set(model.toJSON()); model.save(). there's no reason to set a model to what the model is set to.. it's the epitome of redundant to pass a mod...
Plotting two variables as lines using ggplot2 on the same graph
...equires a simple ggplot() call to produce the plot you wanted with all the extras (one reason why higher-level plotting packages like lattice and ggplot2 are so useful):
require(ggplot2)
p <- ggplot(stacked, aes(Dates, value, colour = variable))
p + geom_line()
I'll leave it to you to tidy up ...
Proxy with express.js
...e modifications were necessary, but I like this better than introducing an extra new "Proxy" module dependency. A bit verbose, but at least I know exactly what's going on. Cheers.
– user124114
May 3 '12 at 17:35
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When should I create a destructor?
...
Awesome article Eric. Props for this --> "Extra bonus fun: the runtime uses less aggressive code generation and less aggressive garbage collection when running the program in the debugger, because it is a bad debugging experience to have objects that you are debuggin...
What is VanillaJS?
...-NIHL-uh ) is an adjective meaning plain or basic. Or having no special or extra features, ordinary or standard.
So why name it VanillaJS? As the accepted answer says some bosses want to work with a framework (because it's more organized and flexible and do all the things we want??) but simply Java...
Move assignment operator and `if (this != &rhs)`
...re this implementation could be problematic.
The cost of the first is two extra stores. The cost of the second is a test-and-branch. Both work. Both meet all of the requirements of Table 22 MoveAssignable requirements in the C++11 standard. The third also works modulo the non-memory-resource-co...
Using jQuery to center a DIV on the screen
...do is speed this up a bit by caching the $(window) object so that I reduce extra DOM traversals, and I use a cluster CSS.
jQuery.fn.center = function ($) {
var w = $(window);
this.css({
'position':'absolute',
'top':Math.abs(((w.height() - this.outerHeight()) / 2) + w.scrollTop()),
'...
Abort Ajax requests using jQuery
...on).
UPDATE 2:
As of jQuery 3, the ajax method now returns a promise with extra methods (like abort), so the above code still works, though the object being returned is not an xhr any more. See the 3.0 blog here.
UPDATE 3: xhr.abort() still works on jQuery 3.x. Don't assume the update 2 is correc...
What is more efficient? Using pow to square or just multiply it with itself?
...d::chrono::high_resolution_clock::time_point from;
};
int main (int argc, char* argv[])
{
double total;
Timer timer;
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i += 1e-8)
total += std::pow (i,2);
std::cout << "std::pow(i,2): " << timer.elapsed() <...
Check if table exists in SQL Server
...onGuralnek so, instead of following a simple and portable standard, add an extra piece of cryptic info?
– defines
May 15 '12 at 14:42
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