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Algorithm to return all combinations of k elements from n
...ome across is of course memory and pretty quickly, you'll have problems by 20 elements in your set -- 20C3 = 1140. And if you want to iterate over the set it's best to use a modified gray code algorithm so you aren't holding all of them in memory. These generate the next combination from the previou...
Accessing bash command line args $@ vs $*
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edited Feb 22 '14 at 11:20
answered Sep 7 '12 at 10:46
gl...
How to get elements with multiple classes
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rogerdpack
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answered May 26 '16 at 1:48
filoxofiloxo
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Python : List of dict, if exists increment a dict value, if not append a new dict
...pie's solution
– thanos.a
Aug 23 at 20:09
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C#: Assign same value to multiple variables in single statement
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Pierre-Alain VigeantPierre-Alain Vigeant
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How to check null objects in jQuery
...e no sense. Use one of the other answers, they make more sense.
(Update 2012) Because people look at code and this answer is pretty high up the list: For the last couple of years, I have been using this small plugin:
jQuery.fn['any'] = function() {
return (this.length > 0);
};
I th...
FB OpenGraph og:image not pulling images (possibly https?)
...ey have now acknowledged that they are "looking into this."
Update: As of 2020, the bug is no longer visible in Facebook's ticket system. They never responded and I don't believe this behavior has changed. However, specifying HTTPS URI in og:image:secure does seem to be working fine.
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How can I replace text with CSS?
...only option
– locrizak
Feb 6 '14 at 20:49
4
span { display: none; } should also hide the pseudo e...
How to test which port MySQL is running on and whether it can be connected to?
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209
To find a listener on a port, do this:
netstat -tln
You should see a line that looks like t...
How can I play sound in Java?
...unnecessary.
– Jataro
Jul 29 '09 at 20:20
45
1) The Thread is unnecessary. 2) For a good example ...