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Using emit vs calling a signal as if it's a regular function in Qt
... you'll see emit is just gone.
The "magic" happens in the generated code for the signal emitting function, which you can look at by inspecting the C++ code generated by moc.
For example a foo signal with no parameters generates this member function:
void W::foo()
{
QMetaObject::activate(this,...
Soft hyphen in HTML ( vs. ­)
... problem with soft hyphens on your web pages? In a text there can be long words which you might want to line break with a hyphen. But you do not want the hyphen to show if the whole word is on the same line.
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Why does this Java code compile?
In method or class scope, the line below compiles (with warning):
14 Answers
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How does _gaq.push(['_trackPageLoadTime']) work?
...Google Analytics Site Speed feature, _gaq.push(['_trackPageLoadTime']) , work? Is there any documentation about how it works?
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Comparing numbers in Bash
I'm starting to learn about writing scripts for the bash terminal, but I can't work out how to get the comparisons to work properly. The script I'm using is:
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Why use a public method in an internal class?
...PDATE: This question was the subject of my blog in September 2014. Thanks for the great question!
There is considerable debate on this question even within the compiler team itself.
First off, it's wise to understand the rules. A public member of a class or struct is a member that is accessible to...
JavaScript data grid for millions of rows [closed]
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(Disclaimer: I am the author of SlickGrid)
UPDATE
This has now been implemented in SlickGrid.
Please see http://github.com/mleibman/SlickGrid/issues#issue/22 for an ongoing discussion on making SlickGrid work with larger numbers of rows.
The proble...
When should I use Lazy?
...always incurring the cost.
Usually this is preferable when the object may or may not be used and the cost of constructing it is non-trivial.
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Rails: How does the respond_to block work?
...ot stuck at this same code. The parts that I got hung up on were a little more fundamental than some of the answers I found here. This may or may not help someone.
respond_to is a method on the superclass ActionController.
it takes a block, which is like a delegate. The block is from do until end,...
How can I get seconds since epoch in Javascript?
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var seconds = new Date() / 1000;
Or, for a less hacky version:
var d = new Date();
var seconds = d.getTime() / 1000;
Don't forget to Math.floor() or Math.round() to round to nearest whole number or you might get a very odd decimal that you don't want:
va...