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Creating NSData from NSString in Swift
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@macdonjo yep, that API changed over time and now it returns an Optional<NSData>, which you need to unwrap before using
– Gabriele Petronella
Sep 21 '14 at 16:57
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Difference between two dates in MySQL
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SELECT TIMESTAMPDIFF(HOUR,NOW(),'2013-05-15 10:23:23')
calculates difference in hour.(for days--> you have to define day replacing hour
SELECT DATEDIFF('2012-2-2','2012-2-1')
SELECT TO_DAYS ('2012-2-2')-TO_DAYS('2012-2-1')
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Do you need text/javascript specified in your tags?
...uired and unnecessary. In HTML, it is better to leave it out. The browser knows what to do.
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Which terminal command to get just IP address and nothing else?
... This is the best answer. ifconfig is deprecated several years now on most os's.
– pozcircuitboy
Jun 19 '19 at 20:39
2
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How to delete multiple buffers in Vim?
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I know next to nothing about Vimscript, but how about glob() function?
– Thanh DK
Jul 1 '10 at 10:14
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Static constant string (class member)
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In C++11 you can do now:
class A {
private:
static constexpr const char* STRING = "some useful string constant";
};
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How to round up a number to nearest 10?
...n ($r <= 5) : $roundee - $r : $roundee + (10 - $r);
}
Edit: I didn't know (and it's not well documented on the site) that round now supports "negative" precision, so you can more easily use
$round = round($roundee, -1);
Edit again: If you always want to round up, you can try
function roundU...
How to create a Menubar application for Mac
...swer it's popularity has exploded (52 contributors currently) and there is now even a distributable version with which you can package your own plugins.
A very simple (non-interactive) example to show live Bitcoin price:
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How to find my Subversion server version number?
I want to know if my server is running Subversion 1.5.
18 Answers
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Make multiple-select to adjust its height to fit options without scroll bar
...nts, you have to manually set the number size value, which is fine if you know how many options there are but more of a problem if there is a dynamic number of options. In which case you would have to set resize the size attribute when you populated the box. I see now, thanks for clarifying.
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