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Lock, mutex, semaphore… what's the difference?
...n notification, recursion?, 'priority inversion avoidance'?, etc].
4) And now, talking about 'spinlocks', first some definitions:
Critical Region= A region of memory shared by 2 or more processes.
Lock= A variable whose value allows or denies the entrance to a 'critical region'. (It could be impl...
mysql update column with value from another table
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i don't know if i understood your question clearly, can you check my updated answer?
– John Woo
Jul 29 '12 at 12:11
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Fastest way to implode an associative array with keys
...unction('&$i,$k','$i=" $k=\"$i\"";'));
$p_string = implode($p,"");
// Now use $p_string for your html tag
Obviously, you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method.
Hope that helps someone :)
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How to round up to the nearest 10 (or 100 or X)?
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The above doesn't work when x is a vector - too late in the evening right now :)
> roundUpNice(0.0322)
[1] 0.04
> roundUpNice(3.22)
[1] 4
> roundUpNice(32.2)
[1] 40
> roundUpNice(42.2)
[1] 50
> roundUpNice(422.2)
[1] 500
[[EDIT]]
If the question is how to round to a specified nea...
Too much data with var_dump in symfony2 doctrine2
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With Symfony 2.6 you can now just use dump($var) in your controller and {{ dump(var) }} in twig.
Make sure to add this to your AppKernal.php file, in the array('dev', 'test') section.
$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
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Convert char to int in C#
...yNail in the case of the original question - asking specifically where he knows the char represents a number - this is the right answer
– Don Cheadle
Feb 16 '18 at 19:45
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Save all files in Visual Studio project as UTF-8
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I have now tried it and it works great. The only thing I had to modify was to use Encoding.GetEncoding(1252)=Western European (Windows) as the second parameter to ReadAllText to preserve my swedish characters (åäö).
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Extract a dplyr tbl column as a vector
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@mzuba I would use the pull command now. My solution was written prior to dplyr version 0.6.
– rrs
Jun 20 '18 at 13:12
1
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How can I mark “To Do” comments in Xcode?
...=#warnings
in my cflags so as to not treat pragma warnings as errors. So now #warning and -Werror can live along side each other.
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Reset select2 value and show placeholder
...er Select2 versions. Use $element.val() instead.
The best way to do this now is:
$('#your_select_input').val('');
Edit: December 2016 Comments suggest that the below is the updated way to do this:
$('#your_select_input').val([]);
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