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Prevent browser caching of AJAX call result
...I haven't deleted it), but there are better/cleaner ways of achieving this now. My preference is for this method, but this answer is also useful if you want to disable caching for every request during the lifetime of a page.
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How to fix the uninitialized constant Rake::DSL problem on Heroku?
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Thank you. That fixed my problems and I didn't know what was going on. (Using the rails installer on windows and deploying to heroku, as a complete beginner.)
– Jack V.
Jun 14 '11 at 22:46
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Getting All Variables In Scope
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Although everyone answer "No" and I know that "No" is the right answer but if you really need to get local variables of a function there is a restricted way.
Consider this function:
var f = function() {
var x = 0;
console.log(x);
};
You can convert y...
Cross field validation with Hibernate Validator (JSR 303)
...The way to go is a class level constraint. Hibernate Validator also offers now a @ScriptAssert which makes the implementation of bean internal dependencies easier.
– Hardy
May 18 '10 at 7:54
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How do I implement a callback in PHP?
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With PHP 5.3, you can now do this:
function doIt($callback) { $callback(); }
doIt(function() {
// this will be done
});
Finally a nice way to do it. A great addition to PHP, because callbacks are awesome.
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Xcode Debugger: view value of variable
...a by clicking the upper-right corner button showed in the screenshot.
Now set a Breakpoint – the line in your code where you want your program to pause, by clicking the border of your Code Area.
Now in the Debug Area look for this buttons and click the one in the middle. You will notice yo...
Submit a form using jQuery [closed]
...lood - How should he have done it instead ? Newbies like us would like to know ?
– MarcoZen
Jul 21 '17 at 15:40
2
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What is the difference between concurrency and parallelism?
...ery important tasks in one day:
Get a passport
Get a presentation done
Now, the problem is that task-1 requires you to go to an extremely bureaucratic government office that makes you wait for 4 hours in a line to get your passport. Meanwhile, task-2 is required by your office, and it is a criti...
Vim: Replacing a line with another one yanked before
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This has the additional disadvantage
that line X is now in the default
register, which is annoying if I find
another line that should be replaced
with A.
To delete text without affecting the normal registers, you can use the Black hole register "_:
"_dd
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How to implement static class member functions in *.cpp file?
...include "helper.hxx"
A::foo() {
helper::fn1();
helper::fn2();
}
To know more about how c++ handles static functions visit: Are static member functions in c++ copied in multiple translation units?
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